After the revelation that Blake was at the very least lusting after Candy’s brother, the two of them went from fucking to talking.  For two hours they discussed what ifs and ideas on how they could get Chris involved.  Blake wanted to just tell him, but he was afraid that might hurt their relationship.  Candy wanted to keep dominating him like she had that morning.  A knock on the door ended the conversation.

After being told to come in, Chris meekly opened the door.  He was both relieved and disappointed that they weren’t having sex right then, though both were unabashedly nude.  

Candy quickly noted that her brother had been crying.  “What’s wrong, Chris.  What happened?”

“I’m sorry, I can’t, Candy, please let me out of these shorts.  I’ve got to pee so bad it hurts.  I tried to hold it.”

“It would turn me on to see you pee your shorts.  I might even do something crazy with Blake to reward you for it.”

“Candy, that’s mean.  I mean, I’d love to see it as much as you, but look at poor Chris.”

Chris was shocked.  “Dude, what?  Really?  You want to see me piss my shorts?”

Candy smiled.  “Blake and I both think pee is hot.  And if you do it for us…well, I think you’ll really like the results.”

Chris looked doubtful.  “Neither of you will tease me about it?”

Blake was already stroking his stiffening cock and Candy’s paw was drifting closer to her slit.  “Never.  We want this.  Please, Chris.”

Candy rarely said please to Chris.  She usually told him what to do and he just did it.  To hear her ask him to do this just felt wrong.  He wasn’t sure why it felt wrong.  It wasn’t the act itself that felt wrong.  It was her politely asking him, almost begging him.  “Is that an order, Captain?”he asked, drawing back to familiar sci-fi tropes.

Candy and Blake grinned at each other.  Candy got off the bed and stood beside her brother, making sure Blake could still see everything.  “That’s ‘Mistress’to you, boi.  Now do it.”

Chris was really hurting from needing to pee for so long.  He was as red as he could be with embarrassment.  Still, the bunny did as she commanded and, despite starting to get hard yet again, he let go and peed his makeshift chastity shorts.  Because his penis had been locked away in the too tight shorts pointing upwards, his pee went up.  At first it was just a wet spot, but the more Chris peed the more it spread and the yellower it turned.  Chris was now peeing so hard that instead of just soaking his shorts it was coming out through the fabric.

Candy dropped to her knees and started licking at the stream as it trickled through the fabric.  She turned Chris slightly so Blake could get a better view of what she was doing.  Then she went from licking the escaping urine to trying to suck it through the fabric.  Chris and Blake said “Fuck”at the same time.

Candy wasn’t just teasing.  She actively tried to swallow as much of Chris’pee as she could.  Of course if she just cut the zip ties she could have swallowed it from his penis, but she had already decided that unless Blake ordered her to, she was never going to let her brother’s cock into any of her three holes.  They were for Blake only.

By the time he was done pissing himself, the front of Chris’shorts were soaked and stained yellow.  There was urine running down the insides of his thighs and adding to the growing puddle of piss on the floor.  He was also rock hard, his tiny prick straining against the shorts, its outline perfectly visible though the wet fabric.

“My man!  That was hot as fuck,”Blake exclaimed.

Candy smiled and told her brother that he had made her so wet she was going to start making puddles of her own.  She ran a finger between her pussy lips, gathering both her juices and Blake’s semen, then she held it in Chris’face, right under his twitching nose.  “Suck it, boi,”she said with a husky voice.

Chris kept telling himself that this wasn’t happening and that it couldn’t be real.  It wasn’t that he wanted it to stop, he just couldn’t believe anyone wanted him for anything sexual, even if it was his sister and his best friend.  He wasn’t going to blow his chance a second time in the same day and sucked her finger into his mouth, licking up the mixed juices with his tongue.

“Open and show me,”Candy ordered and Chris complied.  “Good boi, now swallow it and show me again.”

Chris swallowed the slimy mix.  He actually sort of liked the taste.  It was definitely more enjoyable than urine.  He then opened his mouth as ordered.

“And what do you say, boi?”Candy asked.

“Um…uh…t-thank you.  Oh, Mistress.  Thank you, Mistress.”

Candy smiled.  “Come fully into my room, boi.”

Inside the bedroom Candy rummaged through her dresser and found an old ball of yarn.  Used her arms to measure some out then folded it over itself until it was about the right length.  Then she picked up her collar, which Chris had never seen before today, and held it out to him.  “When I wear this, Blake is my master and I do what he says.  There is a safeword, but I have never had to use it.”Candy turned to look at Blake who nodded.

Chris stared wide-eyed as Candy held up the length of folded yarn.  “This will serve as your collar until we can get you a real one.  While you wear it, I am your Mistress and you will do whatever I tell you, like the good little bunny you are.”

Chris didn’t know what to say.  He already just tasted a woman for the first time in his life.  And it was also his first taste of semen that wasn’t his own.  If this was going to lead to him getting laid then how bad could it be?  He, and especially his cock, liked the idea of being told what to do in the bedroom.  “You’re not going to make me go do chores or run errands, right?”

Candy shook her head slowly.  “No, this is only for up here.”

“Um, for how long?”

Candy looked back at Blake, who was as hard as he could be.  He just sat there with a dopey grin on his face.  Candy turned back to her twin brother, “Until Blake goes home.  For now.”

“Okay, I’ll do it.  I trust you two.  It’s not like this hasn’t been the most action I’ve seen all my life, that didn’t come from my own paw.”

Candy put the makeshift yarn collar around Chris’neck and tied a simple knot that would be easy to release in an emergency.  “You belong to me while you wear this collar.  Your safeword is the word ‘safeword’followed by the word ‘red’  That means something is really wrong.  That stops all play, probably for the rest of the day.  I have never had to use it with Blake.  Now, if there is something minor, or something is really getting to your head and you need a moment then say ‘safeword yellow’  That means stop, discuss and fix what is wrong, and if possible go back to having fun.  Do you understand?”

Chris blushed again.  “Yeah, I read a lot of BDSM stuff.  I get it.”

Candy gave Chris a pretend slap across his mouth, her fingers barely grazing his lips.  “Don’t forget the Mistress, boi.”

“Yes, Mistress.  I am sorry, Mistress.”

Candy then put her own collar on and turned to Blake.  “Your bunnies are at your command, Master.”

Blake knew that he could have Chris right then and there, but he was afraid that if he tried it would scare the timid little guy into safewording out and probably ruin his chances of them ever becoming a thing.  He came to the decision that this day would have no butt stuff, no matter how much he wanted it.  Instead he looked as serious as he could, struggling to stop grinning.  “I’ve been needing to pee for a while now.  Candy will be my urinal for the rest of the day.  And you, Chris, old buddy, are going to be your sister’s urinal.”

Chris gulped.  “More pee?” he moaned inside his head.  He forced himself to say, “Yes, Master.” This made Blake go back to that stupid grin that made him look like he took too many hits on the football field without his helmet.  Chris didn’t know it, but he was grinning too.  What he did know is that those two words, said specifically to his best friend since grade school, felt like they were the most right thing that he had ever said in his life.  At that moment, deep in the back of his mind, Chris knew that he never wanted to be without a collar and to always be someone’s submissive.  Now all that had to happen was for him to consciously realize what his heart and body already knew.

Blake stood up, his massive stallion erection bouncing.  “Candy, drink.”

Candy paused, her own eyes wide.  “Has our Master perhaps forgotten where his mighty rod had been?”

Blake shook his head.  “Of course not.  Now drink.”

Candy had never thought about ass-to-mouth before.  Sure, it had been a couple of hours, but that cock had been up her butt, no matter how clean she had gotten this morning.  At the very least it was going to taste like lube.  Fortunately, despite the pain nothing tore so there had been no bleeding.  Candy almost ‘called yellow’but she didn’t want the first thing for her brother to see was her bulking at an order from their master.

Nose twitching nervously, Candy opened her mouth and wrapped her lips around Blake’s penis.  The taste wasn’t as bad as she feared.  The lube wasn’t flavored per se, but it still had a sort of citrusy tang to it.  This was going to be okay.  She double-tapped Blake’s hip, their sign that she was ready to swallow his pee.

The floodgates opened and it almost felt as if a garden hose had been turned on in her mouth.  A garden hose full of warm urine.  Candy had learned to use her tongue to slow down the flow of urine when Blake went full force like this.  Even doing so, she struggled to gulp it down fast enough, despite actually enjoying the taste and not wanting to waste any.  Well, not much.  She let a little leak out just so Chris could see she was really doing it.

It took over a minute for her to chug down all of Blake’s piss.  He had never let it build up that much before and it was a struggle to keep up with.  If he pissed slower she could more easily breath between gulps.  When Blake finished and pulled out of her mouth she said, “Thank you, Master, for rewarding this one with your delicious pee.” She then turned to her brother and licked her lips, grinning ear to ear.

“So how do I drink yours?”Chris asked hesitantly.

“When I need to pee, I will straddle your face and you will drink from my urethra.”

Trying to be helpful Blake added, “It’s that tiny hole right above her vagina.  It’s really hard to get a seal around it, so you’ll probably spill your first few times.  Don’t worry, if you are trying hard then we won't punish you too badly for wasting your gift.”

Chris had trouble thinking of it as a gift and not a punishment in its own right.  Still he nodded and meekly said, “Thank you, Master.”

Blake continued with the next setup he had just thought about.  Since Chris was trying to get a good look at his sister’s pussy just that morning, then he should have the opportunity to see all there is to see.  “Candy, sit in your chair with your hips forward and your legs on the arm rest.  I want your pussy and your asshole visible.” 

After Candy had complied Blake continued, “Now Chris, you are going to sit with your face touching the edge of the chair.  Candy is gonna hold her pussy open and you are going to see all the details up close and personal.  I want you to make note of her pee hole, her clitty, and especially her vag.  But also get a good look at those pussy lips.  She’s got thicker ones on the outside that are sensitive, but the ones deeper in, those will drive her wild.”

“Should I lick or anything, Master?”

“Nope.” Blake kept grinning, enjoying this even more than he fantasized that he would.  “At least not until after I get out of the shower.” He quickly ducked into the bathroom and started the shower.

Chris got in position and moaned in frustration.  He had been able to forget his own need somewhat while his sister was drinking Blake’s pee, but now that he was hit with all her smells and all of Blake’s smells, his cock was back to hard and aching, demanding attention.  “I need to cum so bad,”he moaned.

Candy disobediently unclipped her collar.  “We’re never supposed to do this without permission.  It means we are free to talk without the master slave stuff.”

Chris nodded.

“So, I’m gonna be blunt and tell you something that I want to think about but don’t you dare say a word to Blake.  Agreed?”

“Okay, sure, Sis.” 

“We’ll pretend your collar is off too for now, but as soon as the water stops, it’s back to Mistress.”

Chris nodded.

“Okay, Blake is bisexual, just like I am, and just like I hope you are.”

“I don’t know.  I mean I want to fuck a girl, but gay porn is hot too.  Yeah, I’m probably bi, but I think I’m drawn to girls a little more.  I can’t imagine fucking a guy’s ass.”

Candy giggled.  “No, Blake’s ass is off limits to cock.  Your ass is a different matter.”

To Candy’s surprise Chris nodded.  “Yeah, I like pawing off with a big dong up my butt.  Especially when it is curved just right.  I almost feel like I could cum without even touching my dick.  Sure, I’ll do anal with you two.”

Candy licked her lips and almost purred.  “Chris, why didn’t we ever start this sooner?  You are a dream.”

Chris was fixated on a fresh trickle of clear juices mixed with the semen that was still leaking out of her pussy more than two hours after Blake had shot it in there.  “So are we gonna fuck, sis?”

Candy giggled, and told Chris, “Not tonight, Chris.  You could get me pregnant.  Blake can’t.” She didn’t want to tell him that he was never going to get to fuck her.  She definitely wasn’t going to tell him that after graduation he’d never touch his penis again, at least if she could convince him into more chastity play after his introduction to it today.  She did feel bad for him.  Maybe just this once she would suck him off.  Maybe, but probably not.

Chris moaned and repeated that he needed to cum so bad.  Candy told him that she understood, but that there was one more important thing she needed to tell him before Blake got out of his shower.  Chris asked what it was.

Candy took a deep breath.  “So Blake really loves me.  He told me he wants to make it permanent and official some day.”

Chris nodded.  “Yeah, I told him to go for it when he asked what I thought of him pledging to you.  I’d love to have him in the family.  I’m really happy for you two.  But if you’re that serious, why play around with me?”

Candy took a deep breath.  “Because, Chris, my dear oblivious brother, Blake is also in love with you.”

At that unfortunate moment the shower stopped before Chris could even begin to process what he had just been told.  Candy quickly snapped her collar back on.  “Remember, you promised not to say anything to Blake.  Answer properly so I know you’re back in submissive mode.”

Chris was almost too stunned to answer.  Candy had to clear her throat twice and tap him on his head before he replied, “Yes, Mistress”

Blake walked back into the room having only barely toweled off.  His cock was still rock hard, but it was now free of lube and any possible bacteria that one wouldn’t want getting inside a vagina.  Infections weren’t sexy.

Candy said, “Welcome back, Master.  Your bunnies have done as you commanded.”

“Chris, have you memorized your sister’s treasure?  Could you go to your room and draw it?”

“Yeah, I think so, uh, Master.”

“Then lick her clean.  I don’t want to see any of my seed anywhere on her ass or pussy when you are done.”

Somehow Chris had known that this was coming.  He had been yearning for it and dreading it all at once.  That changed the moment his best friend, no, his master, yes, but maybe even his lover, gave him the command.  Despite any misgivings he couldn’t disobey if he wanted to.  This was so new, but felt oh so right.  He began to lick, and lick diligently and energetically.

Blake stood and stated, “I’m gonna get us some drinks.  Don’t stop licking her even if you’ve swallowed every drop.  Make her squirm.”

“Yeth, Mathster,”Chris said, continuing to lap up the combined seed and pussy juices.  Looking at what was probably close to half a pint of horse semen clinging to his sister and dripping onto the chair, he doubted that he would have it all cleaned up by the time Blake was back.

“Master, don’t I get to cum from this?”Candy had a pleading look in her eyes.

“No,”Blake said and grinned.

Candy whimpered, her own bladder now hurting.  “May this one at least pee, Master?”

“Not without me back to watch.”

Candy let out a mournful mewl then meekly said, “As you wish, Master.”

Blake delayed his trip downstairs so as to enjoy watching Candy squirm in pleasure whenever Chris would accidentally hit one of her more sensitive spots.  Candy would later admit that for a first timer, Chris wasn’t dreadful at eating her out but for now she was in too much need of release to think about it.