Titus stormed out of the department store in a huff, his sister Jessie not far behind him to ensure he wouldn't get worked up further. Gratz, Titus' sentient tail had always enjoyed teasing his other half, but he'd accidentally gone too far with simply not stopping when he normally cut his quips short. As a result Titus had lost it, bellowing all manner of expletives at Gratz and getting them all thrown out. To make matter worse as they made their way to their respective vehicles outside, Titus noticed his motorcycle was missing, then noticed the expired parking meter he'd overspent the time allowed while in the store. That was the final straw, leaving Jessie to take her brother back to their apartment in her truck, a vehicle Titus had never cared at all for.

	“A particularly humiliating day, I do hope you're proud of yourself Gratz, this is all your fault you know... why sometimes I almost wish...” Titus stopped despite his own anger and frustration at just how quickly everything had piled up, but Gratz got a vague hint of what Titus had almost let slip.

	“I know I've made a horrible mistake Titus, but you wouldn't really wish me gone... would you?” Gratz spoke what Titus couldn't bring himself to, citing a look of shock from Jessie at the very idea.

	“No, no I couldn't imagine a life without you quite literally attached at my hip, Gratz...” Titus conceded after a long pause, sighing before falling limply onto the couch, exhausted after the day's events. Jessie took a cue from that and did the same in the armchair in the living room, settling in as silence overtook the room for a bit. Just as Jessie's eyes were about to close from the lack of noise lulling her to sleep, she heard something over where Titus and Gratz were, cracking open an eye to see Titus cuddling with Gratz held snugly in his arms, the two apparently having already made up.

	As she continued to watch with them both unaware however, the sentiments grew more amorous starting with Gratz placing a firm smooch as best he could to Titus' lips. Jessie found it harder and harder to keep her cool as Gratz took his motions lower, lifting Titus' shirt up to kiss his tummy, then using his mouth to deftly unzip Titus' shorts and pull his half-flaccid length out with naught but his large, flat tongue. Just before their little session went much further, Gratz pulled away to look back knowingly at Jessie whose eyes were now wide open in her own mounting arousal.

	“Hmm, perhaps we should make this a family affair, would you mind Titus?” Gratz said, alerting Titus to the voyeur in their midst.

	“J-Jessie... how long have you been... the whole time hasn't it?” Titus asked bashfully as a heavy blush broke out on his cheeks, not usually one for being an exhibitionist. Jessie nodded stiffly in reply, her own thoughts rather mixed on joining in; usually she left Titus and Gratz to their own matters, but not to say the notion wasn't tempting at least.

	“Would you be okay if I joined, after all if it helps make up for earlier...” Jessie bit her tongue all too late, hoping that bringing up all that happened earlier wouldn't upset Titus again, but he didn't appear to be in the least.

	“Well, we could try I guess?” Titus said as Jessie stood up to undress herself, then go over to straddle Titus' lap. Her brother's knotted, black and red striped length throbbed against her belly, already leaking a fair amount of pre from the tip. As she raised up Titus' eyes went wide with anticipation, then closed as his sister lowered down, the tip of his member pushing ever deeper into Jessie's tight, warm insides. He felt her wiggle a bit, quickly gathering she was trying to take the knot, and before Titus could even open his eyes again he felt the telltale 'pop' of it slipping in as well.

	A gasp of surprise escaped Jessie's lips as she took a moment to get used to these new feelings, both physically and emotionally. She managed to squint an eye open and look at her brother's face awash with pure bliss, the sight being the only motivation she needed to continue. Both of them jumped slightly as they felt Gratz plant a firm kiss to Jessie's own Mouthtail, Kale, drawing the phallic shaped tongue he bore into the kiss and add even more sensation to the moment. The shape of Kale's tongue wasn't just for show, it could indeed cum and was very, very virile. Jessie couldn't take anymore after that, and she began to pump her hips up and down to let her brother's cock pull out, then push back in knot and all to send shivers of pleasure coursing through her fluffy pink body.

	Likewise Titus was almost catatonic with pleasure at the feeling of his sensitive knot popping in his sister's capable cunt, squeezing and sucking before pulling free only to repeat the process time and again. It was too slow however, and breaking free from his trance at last Titus abruptly grabbed Jessie's hips and began to bounce her up and down quite roughly, the only thought on his mind cumming and filling his sister with his seed. Given how both Tailmouth and Mouthtail were connected on both a physical and somewhat mental level, all four of their actions only added to the feeling they all shared, a massive high of arousal born of their little four-way. Said high was hastening their combined approach to climax, and as Titus slammed his sister down onto his cock a few final times, Kale also could take no more as he let loose massive stream after stream of hot thick cum to be gulped down by Gratz, filling Titus' belly up nice and full the way he loved and prompting his own orgasm at last, followed lastly by Jessie as she felt her brother's cum flowing wild in her.

	After what felt like a blissful eternity, their mutual climax came to an end as they all sat catching their breath but not quite sated. Looking up at his sister Titus voiced a request he never thought he'd make of her, evidenced by his unusually cautious tone and deep blush to accompany his words.

	“Jessie... could you indulge me in my favorite act?” Titus asked, and Jessie knew very well what he meant; Titus' favorite partners happened to be large built and well-endowed males, letting Gratz suck them off before they were swallowed down to become a temporary sensual bulge in Titus' belly before they were released shortly afterward. Though she'd been known on occasion to do a similar act with Kale, it wasn't nearly as common as Titus did it, not to mention Jessie had never done such a thing with Titus in the first place, giving or receiving so to speak. Jessie appeared to give the matter some thought, understandably having her reservations with Titus' odd kink.

	“I'll be really sensitive afterward, isn't that right?” Jessie asked tentatively, and Titus nodded in reply.

	“Yes, even the slightest touch will bring to to orgasm, I can't really keep it from happening...” Titus said reluctantly, wondering if that wouldn't just make Jessie say 'no' then and there, but she took a deep breath as though steeling herself for the answer she'd give, and Titus held his own breath by comparison.

	“I... suppose trying it couldn't hurt, it won't harm me?” Jessie said more to reassure herself of that fact, even despite all those who had tried before her and came out just fine.

	“It's not really a stomach in a traditional sense Jessie, think of it as a way for your brother to give you a nice big embrace from all sides...” Gratz chimed in, having a bit better knowledge of the goings on with his half of Titus' body. With a nod Jessie silently agreed, pulling off of her brother's shaft as a torrent of white seeped from her sex, pooling up on the couch a bit as she watched Gratz move close to her face.

	“Just relax now, if you move too much it makes it a bit difficult, so please stay calm.... you'll be fine Jessie, you too Kale.” Gratz said reassuringly as he opened his maw wide to place it over Jessie's head and shoulders entirely. He effortlessly closed it down around her, sucking and swallowing as his mouth began to engulf Jessie's body lower and lower, stopping only for a moment upon reaching her hips to raise up and tilt back, letting gravity aid in the effort now.

	“Oh gods... she's going to be...” Titus squeaked as he felt his sister's head begin to push inside and form the first signs of the bulge, soon to be comprised of the rest of her. Jessie's feet were given a warm flick of Gratz' tongue as they were drawn inside, with the tip of kale being the last to slide down in. Gratz gave Kale as best a loving lick as he could before closing his mouth over his light pink counterpart, giving a final gulp as the last of Jessie was pulled inside of Titus' belly at last, and only then did Gratz see the ecstatic look about Titus just then. He was giving his plump tummy an endearing, soothing rub, appearing to enjoy his own sister being inside of him more than any other partner before her. It was his next words though that sent Gratz for a loop, yet another request that Titus would have never made before.

	“I... don't suppose we could let her stay inside me for a bit longer than usual...? Oh, she feels so good!<3” Titus sighed in bliss as he felt Jessie wiggling around a bit to get settled in her brother's belly, the sensation bring about waves of pleasure for Titus.

	“Well, if she doesn't mind... we could always tell her it takes awhile to leave, and if it makes my sweet happy then I won't argue.<3” Gratz said with a grin at their harmless scheming, placing a tender smooch to the mound in Titus' belly before moving his attention to the once more rock hard length between Titus' legs.