“Knock, knock!” the vixen called in a sing-song voice from the open doorway, just to get the kit’s attention.
The young fox’s eyes shot up to look at her and remained there as the voluptuous vixen struck a little pose, leaning against the doorframe and holding out a tray of sandwiches like it was forbidden fruit.
“I found these untouched downstairs so I figured you forgot to have breakfast. I thought I might as well bring it up to you…” she said, setting the tray with the juice and sandwiches on a nearby table. Quite innocent enough, if she hadn’t still been wearing her bikini and making sure her breasts were squeezed between her arms as she held the tray.
“Uh, thanks Miss Lydia.” The kit said, glad that he was lying on his stomach on the bed and that the vixen couldn’t see his crotch.
“Don’t mention it honey. I’m was just coming up to use the shower, so it was on my way…” she said before dashing out with a swish of her tail. A maneuver she knew would send a wave of very intimate scent wafting towards the boy. Helen had gotten her quite worked up, after all.
Terry did his best to pick up where he left of in the comic he’d been reading, but he was having a hard time with it. He could hear the rush of water and Lydia’s melodic voice humming, the vision of the vixen swimming in front of his eyes and stopping him from seeing anything else. Little snippets of the way he’d just seen her came bubbling up, a very intimate video he still couldn’t believe he and Dan had…watched, not to mention one that their moms had made.
He wondered how he was going to look his mother in the eyes again, considering how he’d just reacted to seeing Lydia. Although to tell the truth he’d had a crush on his friend’s mom for some time now, and lately she seemed a lot friendlier towards him. He’d dreamt about the vixen and had been stunned to realize earlier that morning just how inferior those dreams had been compared to the reality. Even as he lay there he could swear that every now and again the vixen’s humming would turn into a moan, like the ones she made when she was getting pounded by…
“Terry honey, could you come in here for a second?” he heard the sweet voice and his heart almost stopped. Was she asking him to go into the shower while she was… but no, there was no longer the sound of rushing water and the voice came from the room opposite his. How long had he zoned out for just now?
He gently opened the door to the room Lydia and his mother shared, the very realization sending a fresh surge of blood to his crotch as his eyes focused on the vixen wrapped in a sheer linen bathrobe sitting on the edge of the bed. Her fur looked dry and fluffy, the room smelling of her shampoo after she’d blown it dry, but her long hair still looked a bit damp as it fell half-way down her back.
“Sorry to bother you, but could you help me brush my hair? Dan usually does this for me but it will be dry by the time he gets back and it tends to get tangled if I leave it like this for too long.”
“Uh, no problem…” he said, taking a few zombie-like steps towards Lydia and picking up the brush she was handing him.
“C’mon, up, up!” she said, playfully patting the bed next to her.
Terry could hear his blood pounding in his ears as he got on the bed and knelt behind the vixen, the scent of her freshly washed fur and hair almost making his head spin as he breathed in deeply. His friend’s mother made a show of wriggling her shoulders as she got comfy, back straight and her muzzle lifted a little as she waited for him to get to work. Terry gingerly began to run the brush through the thick spill of luxurious chestnut hair, trying not to look past her shoulders.
“So Terry, how are things going at school?” Lydia asked innocently enough.
“Uhm, fine…” the kit replied, blushing for sounding like a brain-dead moron but his brain had just enough power to run a brush over hair.
“Got a little girlfriend yet?” the vixen continued, her tone coy and gossipy.
“N-no.”
“Ahh, can’t settle for just one?” she teased, almost feeling the heat of the kit’s cheeks on her shoulders.
“It’s not that! It’s just that… girls our age are kinda shy and hard to talk to…”
“Mhh, I remember what that was like. Don’t hold it against them Terry. Young girls have a hard time at that age…”
As the vixen spoke in a confiding tone, the kit found his muzzle drifting closer, until he could just see past one slim linen-covered shoulder. And what a view! Lydia’s chest looked amazing, the creamy fur still fluffy after her shower but failing to hide the contour of her two perfect breasts as they pressed against the thin white fabric.
“Most of them don’t really know what they want. They’re afraid of what their first time will be like, worried about losing their virginity too fast, worried about waiting too long, and always worrying about what others will think of them.” She said, and Terry felt she summed it up pretty well.
“But once girls become women, all of that goes away.”
“W-what do you mean?”
“Well, women know what they want, and most of the time they are confident enough to get it.” Lydia explained, her voice picking up an almost purring quality. Terry could swear he’d heard her talk like this, but couldn’t remember when. 
“How do they do that?” he asked, and Lydia smiled as he gave her the perfect line to continue her little play.
“Well it starts with little signals – body language, clothing. It’s all about catching an eye and giving it something to look at. Then some sort of innocent contact…”
“I –innocent?”
“M-hmm. A woman would make sure she was alone with someone she was interested in first. Then maybe ask him to check if she has something in her eye. That always tends to bring muzzles within kissing distance…” she spoke, her lips curving as her ears picked up the boy’s rapid breathing. But he still continued brushing. How thoughtful! “Maybe complain of a stressful day and ask him to rub your neck or shoulders. Or ask him to brush your hair…” she said, her voice lilting as she trailed off. 
She shrugged innocently, wriggling her shoulders just a little but enough for the robe to slide a little until it was barely clinging to them. Terry had stopped in mid-stroke and she could practically feel his eyes peering past those almost-bare shoulders and along the spill of creamy fur running from her neck down. She could hear his breathing in the sudden silence, and figuring the moment was ripe she turned a little until his eyes were caught in hers.
“Terry, what do you think is the biggest secret you could keep?” she asked, letting a shadow of a smile play across her muzzle, a hint that keeping this particular secret could turn out to be quite fun.
The boy wound up surprising her by making the first move. He made a lunge for her lips with his muzzle and screwed his eyes shut as he kissed her. Lydia managed to stop herself from giggling, knowing it would do too much damage to the kit’s ego. She had to admit he was brave – taking his first kiss like that.
And the boy’s awkwardness left little doubt that it was his first kiss. His hands were at his sides, his body tense as he froze with his lips pressed against hers. But she figured he deserved some points for being brave, so she gave him a soft sigh as she melted a little into their kiss, bringing up one hand to caress his face and hopefully relax him. This seemed to bolster the boy enough for him to do the same, and although his hand on her cheek felt nice, in her opinion the boy should have one-upped her and placed his hand a little lower.
As much as Lydia enjoyed kissing, and as appealing as it was to teach the kit how it’s really done, she figured the boy needed to breathe. Not to mention she had certain needs. You’re lucky I’m in heat, Romeo… she thought as she broke the kiss and saw the boy’s face. There he is, the future father of my child. Doesn’t he look adorable!
“If you want this to go any further, these…”  she said, giving a little tug on his t-shirt. “…will have to go.”
Her husked words seemed to carry the weight of a command, and no sooner had they left her mouth than the kit was on his feet, tugging the shirt over his head and pausing just for a second before hooking his fingers into the waistband of his shorts. A hint of a nod from her and those were gone to, revealing a boy on his way to becoming a man, and one part in particular that wanted to cut the journey short.
“Good boy. Now sit down on the bed with your back against the headboard…” she said, getting up and moving her hands to the knot on the belt holding her robe closed. That little gesture was enough to make the kit obey, and she suppressed another giggle at the sight of him clambering onto the mattress while keeping his eyes glued to hers. It was quite endearing – the way he was trying not to actually pant, the wide-eyed look so full of hope and the few red inches catching her eye.
It was tempting to just relax and let the boy fumble his way with her, offering no more than a word of advice here and there as he gave her his innocence. At this point, there was no mistake that she’d get what she wanted from him, but this had gotten her going more than she thought it would. Just letting the kit mount and hump away to completion wouldn’t do. And if she was going to be his first, she figured she’d give him something a bit more memorable.
A good look would have to be the first thing. Nimble fingers made short work of the knot, but she took her time undoing it, holding the robe closed even when the two strands were hanging limp at her side. It was like holding a treat in front of a dog, Terry’s muzzle actually hanging open as he held his breath. And with a shrug and a flourish she’d robbed him of it, slipping her robe off and letting it fall to her feet, something the kit might be doing himself if she hadn’t told him to get comfy on the bed.
With her hip cocked, her shoulders held back a little and her fluffy tail swishing gently behind her she could only imagine what sort of sight she was for the awe-struck teen. Enough for the last few inches of his pride and joy to leave its sheath, the knot still just a bump at the base but altogether quite an appealing sight. As was the plump looking little pouch just under it, one that would be a little less snug by the time she was done with him.
She climbed onto the edge of the bed opposite Terry and made her way on all fours, with her tail raised behind her for an alluring yet predatory effect. And once she finished stalking her prey, she brought her muzzle close enough to get a taste. The boy’s gasp actually made her ears twitch, and parts further down along her shapely body respond in a similar fashion. The kit was already as hard as he needed to be, but Lydia figured she’d have a little fun. She kissed and licked the smooth, rosy length, but made sure to keep her eyes on the boy’s knot.
One part of her urged her to just forget the plan and have some fun. It would be a thrill to take the firm young shaft into her muzzle and look up into the kit’s eyes as her tongue worked its magic on the most sensitive part of his young body. His expression as he came down her throat and watched her swallow every drop would surely be a sight to see, but she could also take her muzzle off his pride and joy just as he was about to burst. Hot little streaks would shoot all over her face, but she’d make sure he got some too, a good excuse for a shower together.
At his age he would soon make more kit-cream and even if it didn’t take at once she had no reason to stop at one mounting. But at the state she was in she just couldn’t bear the thought of wasting his precious load, and so she made sure to ease up when the bulge at the base of his cock grew too big. She gave the glistening foxhood a parting kiss, her lips curving in a little smile as the kit’s length throbbed against them.
She kissed her way up the boy’s body then, her muzzle making a furrow in the creamy fur of his belly, little pecks trailing up the middle of his chest before she found his lips. It was gentle but deep, a passionate open-mouth kiss that was sure to rob Terry of what little breath had left at this point. There was little doubt in her mind that this was in fact the boy’s first kiss, and while she did feel a bit presumptuous at seducing him and taking his virginity, she knew that not all first times are special. They can also be awkward, frustrating and unsatisfying if one side gets too nervous and chickens out. At least she knew she could give Terry the sort of first time that he’d never forget.
She broke the kiss when she figured the kit needed his breath more than he needed her lips, straightening a little before flashing him her best bedroom eyes. His gaze was locked on hers, and lowered along with hers as she looked down along her trim belly to the vulpine mound poised above a hard knotted shaft. She tried to keep a smile from her muzzle as she gently angled the boy’s cock up, aiming the tip at her glistening folds as she paused before taking the plunge. The boy was frozen with a look of desire and awe that was so honest it was both endearing and comical. And quite pleasing to the ego.
The expression the boy wore warped when she lowered her hips, the tip parting her lips before she smoothly sank down, engulfing the vulpine member as the kit’s eyes rolled back in his head. Lydia had been wondering how much of her enthusiasm she’d have to fake when the moment came, but her soft sigh was entirely honest, as was the way her sex hugged the kit’s pride and joy. The toy she and Helen alternated using was more generously proportioned, but in the end it was just a length of inert silicone. 
The sensation of the boy held within her sweltering sex combined with the heat she was in almost made her hips move without consulting her brain, but she knew she had to be patient if she wanted more than just the kit’s sperm. She could see the way his chest was rising and falling as he struggled to breathe evenly, the sight of her bared chest so close to his face making the effort more difficult than it should have been.
“Do you like that, Terry?” the vixen asked in a lilting, breathy voice that had the shaft lodged in her sex throbbing and the kit’s ears perking up.
“U-huh…” seemed to be the best the boy could muster. His expression was stupefied, but Lydia found in very endearing, and it certainly stroked her ego to know she could still have this sort of effect on a male.
“It feels great for me too…” she said, emphasizing her point with a little clench of her pelvic muscles. “But could you do me a favor?” she asked, knowing the boy could only answer one way at this point.
“Y-yes…”
“Good, sweetie. I need you to hold back for me. Just try and last as long as you can, okay?” she could, running her fingertips down his chest.
“Okay… I will.” The kit replied, and the genuine determination on his face struck the vixen as quite… charming.
There was a heat to the young cock sheathed inside her, and other qualities she couldn’t describe. Instinctively she knew that it was alive, and something that could coax life to grow inside her since she was very much in heat. She could feel Terry’s little knot throb, could imagine how that adorable little cock was leaking within her, a prelude to what was sure to be a flood of pubescent fox-spunk soon enough.
Lydia put a finger under the boy’s chin, tilting his muzzle up before bending down to plant a kiss on it. The boy’s lips parted and she was tempted to teach him how to kiss properly, but knowing he’d need his breath she just settled for a few playful flicks of her tongue over his before pulling away. Taking in the sight of Terry sitting there with his eyes glassy and his lips still parted, she lifted her hips and sighed softly as she felt her folds cling to the little knot before the still compact bulge slipped from her velvety embrace.
It was tempting to just bounce up and down and that cute little lump, to feel it swell and swell until it throbbed in that unmistakable way that signaled a tod’s climax. But she knew that it would Terry’s most sensitive spot, and if she wanted to give the boy a shot at fulfilling his promise, she’d have to hold back. Instead she raised her hips further, sliding her sex off the boy’s shaft until only the tip was still held by her glistening petals. The soft moan she let out as she slid back down was genuine, her sex swallowing the young male under her until she felt the slender knot kiss her lips.
Looking down at Terry she was glad to see the boy seemed to be doing what he promised – bravely fighting a losing battle against his own instincts. Not that Lydia would have been disappointed if he failed. After all, the main reason she was doing this was to feel his seed surge into her fertile womb and letting her lover’s son give her a beautiful little kit. But the sensation of the boy’s shaft twitching inside her made her wonder of Terry could give her something else…
Although if she was being honest, she was taking it. A grown man might have grabbed her hips and started either pulling her down or thrusting up at her, but all the boy under her could hope for was to clench his paws into fists and last long enough. It was up to Lydia to get what she needed, her back flexing and arching with every rise and fall of her hips. Each time she did it she could feel the tapered tip poking and rubbing different spots inside her, and when she found the right one the vixen moaned softly, her nipples stiffening and making her young lover’s eyes go wide as they poked from the fluffy fur of her chest.
Lydia realized Helen had spoiled her a little, since the vixen knew just where to go once she was inside her vulpine lover. With a newly deflowered boy under and within her, it was up to Lydia to take what she needed, but after a few more strokes she found just the right angle to ensure Terry’s tip grazed the little bump that would make her ears twitch and her tail flick behind her.
Knowing the kit could only last so long, Lydia picked up her pace, bouncing on Terry and feeling his knot get bigger every time her now soaked labia pressed against it. Normally this would be the time to make the call whether she wanted to tie with a male or not, but she was sure that she could take the boy’s bump even if it swelled up all the way while outside her. She’d noticed his gaze falling every now and again, watching her wet lips press against the knot but never hard enough for him to sink in. But invariably his eyes would snap back up to the vulpine chest swaying and bouncing in front of him.
“Go on Terry, it’s okay…” she husked, hearing her own arousal in her voice as she gave the kit permission to do what his paws were obviously itching for.
Predictably enough the boy’s hands almost flew up to cup her mounds, his fingers making furrows in the creamy fur that was still fluffy after her shower. His touch was tentative but eager and the vixen found herself biting her lip at the sight of the boyish paws exploring her bountiful chest. Affection and arousal mingled in her brain, sending little tremors that ran along her naked body and seemed to settle in the spot currently occupied by the boys’ shaft.
She wasn’t sure if Terry could really last long enough for her to come, but as she picked up the pace she knew she was close, that the sweet tension swelling up in her was looking for that one little bit of stimulation that would cause the wave of pleasure to break. Her young lover’s muzzle was open, and acting on either instinct or impulse she placed a hand on the back of his head and guided his lips to a stiff pink nipple. The kit seemed stunned at first but a second later he’d sucked the hard nub into his mouth, moaning into the vixen’s breast as his tongue began to flick over it.
It seemed to be more than the boy could take, and even if Lydia’s ears hadn’t picked up the way he was grunting into the pillowy vulpine mound his muzzle was pressed against, there was no mistaking for the rhythmic throb of the young shaft held in her sex. Wasting no time, the vixen pushed her hips down, hearing the wet noise the boy’s knot made as it slipped into her now drenched honeypot. Wilt the rosy bulge nestled against her sensitive spot, the vixen could feel every twitch and throb of the young cock, her own heart beating faster and faster as she ground her sex against his crotch, desperately seeking her own release.
When she felt the first spray of the kit’s seed she gasped, feeling herself teetering on the edge. As Terry moaned around her nipple Lydia began to tighten her pelvic muscles, forcing her sex to wrap around the spurting shaft. The clenching was enough to make the plump knot feel deliciously thick, the pulse of the swollen length feeling like a hard throb against the quivering walls of her sex. That proved to be the last straw, and the vixen bent her head and began plating little kisses on the top of Terry’s head as her sex continued to clench and flex on instinct, drawing the young male’s seed deeper within her as his swollen knot ensured she took every warm drop.
*******
“Are we in trouble?” Dan asked nervously. His and Terry’s mother didn’t seem upset, but they had told the boys they ‘needed to have a talk with them’ and that was generally a bad sign.
“Now why would you ask that? Have you two been getting up to something you shouldn’t have?” Lydia managed to ask with a straight face, seated beside Helen - her lover who was doing an admirable job keeping herself from giggling at the sight of their sons. The two knew full well what each kit had done since they’d traded stories of each boy’s exploits every evening, just before giving each other some feminine affection before going to sleep. And there had been quite a few tales to share. For the past three days each vixen had been raising her tail for the other’s kit, and the tests they’d taken this morning proved that their little studs had given them what they’d needed from them. And it also meant it was time for a little talk.
“No…” the boys replied in unison, looking down at the sandy beach rather than meeting the gaze of the vixen they’d been intimate with for the entire vacation, or those of their mother, or even each other’s.
“Well then there’s no need to look so nervous, is there?” asked Helen “C’mon, have a seat…” she said, making a point to look Dan in the eye as she patted the space next to her.
“You too Terry…” Lydia chirped, patting a spot on her towel. The two boys were confused and visibly awkward as they sat next to each other and next to each other’s mother. Or to put it in another way – next to their lover. The vixen’s let the silence hang for a few moments, but when it became obvious the kits were too tongue-tied to break it, Helen did the honors.
“Both of you did it.” she said, the two boys’ eyes going wide as they stared at her in disbelief. “In case you were wondering…” the vixen added with a smile.
“Or rather, we did it to both of you, and we think it’s time we told you why…” Lydia said, and taking turns the vixens went into as much detail as they thought the two stunned boys could handle, finishing off by confirming that they were both expecting kits.
“B-but does this mean… we’re going to be daddies?” Terry asked, immediately regretting the panicked squeak in his voice and his childish choice of words.
“No, it means we’re going to be mommies.” Lydia replied.
“That’s right. You boys passed a pretty big milestone in the last few days but you’re still way too young to be fathers. As far as the world’s concerned, Lydia and I went to a clinic to get pregnant. This stays a little secret between the four of us.”
“So… when we get back home… everything goes back to normal?” Dan asked. Never had anyone put a more dismal emphasis on the word normal.
“Well that was the original idea…” Lydia mused, pausing to see if any of the boys would actually whimper forlornly. “…but we’ve been talking. We really just wanted you two to give us each a kit, but…” she trailed, smiling as the boys’ ears perked up at the word, their teary eyes wide as they held their breaths.
“…but you two wound up leaving an impression.” Helen finished. “You’ve proven to be considerate and very eager lovers, and more mature than we thought you’d be. Each of you even managed to keep the secrets we entrusted you with from your best friend!”
“And if you can stay considerate and discrete when we get back home… well maybe we could have little sleep-overs. Terry, you could come over to our place…” Lydia said.
“While Dan spends the night with me…” Helen finished. The two had talked about this, and figured it would be a good idea. It would still be a few years before girls their age were ready to put out and by that time they were the two vixens were sure the kits would be over their boyish crushes and ready to fall in love for real with some pretty young things.
“But now that the cat’s out of the bag…” Lydia began, and neither of the boys missed the fact that her fingers were reaching for one of the knot’s holding her bikini top in place.
“…and since we’d been keeping each other abreast of what you two had been doing…” Helen continued, the boys ears twitching at the near-mention of the word breast as the other vixen began to undo her swimsuit.
“…each of us has been kind of curious to see what our boy is like with a woman…” Lydia added, peeling her top off and trying not to giggle as the kits’ swim trunks began to tent up.
“No pressure of course. If it’s too much you boys can always go run along and play…” Helen said, her voice cheerful and lilting as her fingers undid the knots at her hips.
“Or…” Lydia said, wondering if the two horny kits had any idea how rehearsed this little piece was as both she and Helen rid themselves of the last shred of clothing covering their voluptuous bodies. “…you can stay here and play with us.”
With two sets of wide eyes focused entirely on them each vixen stretched out on her towel, lying face-down and resting on their elbows as they craned their necks to look back. It was an unsubtle display, but just in case the boys weren’t getting the message the vulpine femmes flagged their big, bushy tails and showing the boys a pair of magnificent russet rumps with a streak of creamy white down the middle and flashes of pink between each vixen’s thighs.
Dan and Terry knew, on some intellectual level that this was an awkward moment, that they’d been pulled into something that might put their friendship to the test. Even knowing they’d been seduced by each other’s mom there was a notion in their minds that doing what the two adult vixens obviously wanted them to do might be too bizarre. That made little difference, since their minds were no longer in control.
The two friends awkwardly averted their gazes from one another, and once they did they found it impossible to tear their eyes away from the sight of the two voluptuous vulpines waiting. They awkwardly shed their trunks and exposed a pair of growing shafts to the two vixens who arched their brows and wriggled their exposed behinds in an obvious but effective sign of approval. Dan was the first to approach the reclining Helen, straddling her legs as he placed his palms on the vixen’s perfectly rounded cheeks, feeling the now familiar tingle of excitement run up his arms as he carefully grasped the vulpine rump. He tried keeping his eyes on the mouthwatering sight of his fingers making little furrows in the sleek fur but there was no escaping the coy look his own mother gave him before she turned back to look at the boy mounting her, Dan’s own best friend.
“You know boys, since we’re both already knocked up and since you’ve proven to be such thoughtful lovers, we’d been thinking and if you like…” Helen said, and on cue both she and Lydia reached back and pulled one of their curvy cheeks aside, savoring the near-unison gasps of their sons.
“We figured it’s only fair since we took your virginities that we offer you ours.” Lydia finished, feeling a genuine flutter in her belly at the knowledge that she and Lydia were offering up their asses to the pair of horny kits. But the two had experimented a little the last few nights and were confident they could both take and enjoy the boyish shafts stuffed under their tails.
Dan still seemed to be stunned by both the suggestion and the sight of a vixen’s pucker winking at him, but Terry just bit his lip and watched his body move on its own. His hands were shaking as one took hold of his leaking shaft, the other spreading Lydia’s other cheek as his eyes focused on the glistening pink rosebud in a sea of creamy fluff. He tried to swallow with a dry throat as his wet tip kissed the ring of soft, warm flesh, doing his best to fight the urge to buck his hips and burry his young stiffy in. The tapered tip landed in the center of Lydia’s pucker and the it was just a matter of slowly pushing and watching the pink ring dilate and his rosy rod disappear under the moaning female’s tail.
His ears twitched at the soft groan Helen let out and his cock did the same as the vixen’s pucker clenched up a little before she relaxed and let him sink in deeper into a hole so tight it had his fingers digging into the bouncy vulpine cheek. Something between a sigh and a hiss came from his left, and as he reflexively turned to look he could see his best friend sliding his own shaft under his mom’s tail. Mixed feelings arose at that realization, but Dan could hardly fault his friend with his own vulpine rod sliding deeper and deeper into Helen.
It didn’t take the kit long to push every bit but his knot into the vixen’s tight ass, the bulge pressing against the stretched ring but not hard enough to sink in. His friend’s mom had such a grip on him he wasn’t sure he could even push it in under her tail, and was hesitant to try without the vixen’s permission. Instead he slid himself out, his mouth agape at the sight of the pink pucker clinging to his red length and then dimpling in once again as he slid everything but the knot back in. Helen let out a very appreciative coo, a signal he’d become sensitized to these past few days. Placing both hands on the perfect curve of her behind, the kit began to slide back and forth in a steady rhythm, aware that just beside him his friend was doing the same thing to his mom.
Lydia hadn’t missed the way her son had looked at her, and couldn’t help but think he looked adorable as he plowed Helen’s rump. But she cast a decidedly different eye on the little stud sliding his rosy-red shaft in and out of her pert behind, her freshly deflowered pucker still pulsing around the hard length even while she did her best to relax and let the boy mate her butt. In spite of some thorough preparation, the kit gripping her buns felt so thick she was thankful he was giving it to her slow. If she didn’t know who it was back there she might have guessed it was a fully grown tod, or even a wolf, but a quick gander was enough to confirm it was just the cute boy next door, wide-eyed as he griped her hips with his little paws.
After a minute or so of patient thrusting and a hard young cock leaking within her ass, Lydia relaxed enough that she found herself genuinely enjoying her first taste of anal sex, and one look to her left told her Helen was enjoying her son as well. Her long-time lover met her gaze, and as their fingers entwined the two vixens leaned over and began to passionately kiss.
Terry’s eyes were drawn to the sight of his own mother kissing the woman who he was steadily thrusting into. While part of him just tried to follow the twisting of the two tongues that looked like a couple of snakes wrestling, a thought entered his brain when he was sure he had no capacity to think. Somehow that affectionate gesture drove the point home better than the video he and Dan had watched, that their mothers had a deep, loving relationship, and have had one for a while now. It occurred to him that even though the vixen’s were obviously willing to share their affections and their bodies with each other’s son, neither he nor Dan really had a chance of coming between them.
Dan, on the other hand, wasn’t capable of such deep thoughts at this moment. Rutting Helen’s rump was completely different than slipping his shaft into the vixen’s slit, and every now and then he’d her moan into his mother’s muzzle and feel the pink ring clench up around him. Every time she did that he wondered what it would feel like to have that glorious behind clenching around his knot, but even though the vixen’s pucker seemed a little looser, he was still hesitant to try and push it in.
Helen could feel the swelling lump dimple her tail hole a little more with each thrust, and was warming up to idea of letting the boy tie her ass. This little orgy of theirs was deliciously kinky, and even though she doubted either she or Lydia would be able to cum from having the boys breed their butts, the sensation of a firm young cock pistoning in and out of her ass and the subtle smack of a little furry pouch against her slit was getting her more aroused than she’d expected. She could tell by the expression on Lydia’s face that she felt much the same way, and even if she couldn’t read her lover’s look there were the rock-hard nipples on the vulpine femme’s bouncing breasts to betray her.
“Terry, if you’re –ungh!- gonna tie, better do it soon…” Lydia said as she broke her kiss with the woman her son was fucking.
“You too Dan…” Helen said, biting her lip at the thought of letting the panting kit behind her actually knot her tail.
The boys didn’t need more urging then that, and after they got permission it was only a matter of thrusting hard enough to pop the swelling knots in. Either Dan was more desperate to tie, or Helen had relaxed more than Lydia had, but the vixen found herself letting out an embarrassing squeak as the kit behind her pushed every last inch of himself under her tail. She let out a long, shaky moan at the sheer intensity of having a knot – even a relatively small one- ballooning up inside her well-rutted rump while the fine hairs around Dan’s sheath tickled her pucker.
Lydia’s cry when she took her son’s cock was worthy of a porn star, but Helen didn’t miss the subtle wince as Terry’s knot grew under her lover’s tail. The more recently knotted vixen met her gaze, and in an impish instant the same thought entered both the vixens’ heads – whose boy had the greater stamina? They both gave their stuffed rumps a little wriggle, a sign for the boys they could go for the big finish. As the kits began to grind and tug at the vulpine behinds they were firmly buried in, the vixen’s made sure to do their best to clamp down on their lovers, wondering who’d go first. And idea popped into Helen’s mind, and the vixen decided to try and tip the scale.
“Mhhhh…Oh Dan! Aughhh…” she moaned, over the top and throaty in the hopes of pushing the boy stuck under her tail over. It was only when she heard her own son grunt and saw him drape himself over Lydia’s back that she realized her little show had misfired. 
Oh dear, what have we done to these two? She wondered, but didn’t have much longer to wait. Apparently the sight of his mother gasping and moaning as her butt was bred pushed Dan over, and Helen found herself cooing at the strangely soothing sensation of the kit’s warm seed surging along his length and filling her up. She turned to look at Lydia and kissed her again, knowing that once the boys shrug down and slipped out the two of them would finish each other off while the kiss went for a swim. Or not. Helen was fairly sure that the days of the two of them hiding what they did from their boys were over…