Very well

The next day you continued training Tracy to control her pussy, controlling the vibrator from work and tormenting her by forcing her to hold herself on the edge of orgasm the entire day. Perhaps thanks to her gaining greater control or perhaps thanks to you going slightly easier on her than before, but today she managed to succeed, making it the whole way through the day without letting herself climax. However, she was in for another challenge as she had informed you that two men had already messaged her from her dating profile and organised to come by the house after she finished work today to use her holes. Since you wouldn't be there, she obviously wouldn't be allowed to orgasm and therefore would have to hold on throughout what would no doubt be an intense fucking session.

You finally finish work around 5:30pm and head home, looking forward to finding your girlfriend being pounded by a couple strangers. As you enter the house you're slightly surprised that you can't hear anything. Over the past week you had grown accustomed to arriving home to the sounds of Tracy blasting porn through the speakers as she pleasured herself. Things start to make a bit more sense when you head up the stairs and start to hear fast slapping sounds coming from the upstairs living room. You enter to find two guys roughly spitroasting your girlfriend. They look alarmed as they see you, clearly surprised that what appears to be Tracy's partner has arrived home.

"Oh fuck, sorry bro this isn't what it looks like."

"Oh it's not? Because it looks like the two of you are spitroasting my girlfriend."

"Yeah ok, it's exactly what it looks like. But this hoe came onto us ok. Even had a whole dating profile set up talking about sending nudes and being D-T-F."

This whole time, the two of them still haven't even taken their cocks out of Tracy, clearly she's doing too good a job of satisfying them to merit pulling out even when her boyfriend shows up. Tracy turns her eyes slightly to look over at you, but still doesn't avert all of her attention from pleasuring the cock in her mouth, which clearly explains why you couldn't hear her squealing the second you entered the house.

"I know, I set it up."

They both look at you with surprise. "Oh shit, right, so you guys have one of those open relationships or something?"

"Yeah, something like that. Tell me, has she cum yet?"

He looks back at you slightly surprised by your question, but also a little disheartened.

"Nah, not from what we can tell. But to be fair, the hoe begged us to use her ass so it hasn't been easy."

This was interesting, it seemed Tracy had asked them to use her ass instead of her pussy in order to decrease the difficulty of her self-control. You knew she had cum from anal a few times since she had first tried it out, but you'd imagine it was still less easy compared to cumming when she had a cock in her pussy. You're not sure if you considered this cheating on her training, but perhaps her being railed in the ass was punishment enough for that one. You move around to the other side of the couch where they're fucking and grab Tracy by the hair, pulling her off the cock in her mouth to look up at you.

"Hey come on man." The guy who was previously receiving some top tier head from Tracy is upset you've stopped the little slut from sucking him off.

She starts panting now as the guy in her ass continues to clap her cheeks.

"Is this true slut. Did you really beg them to fuck you in the ass so you wouldn't cum as easily?" Tracy responds by nodding, looking slightly ashamed of herself. You spit in her open mouth and she swallows your saliva like the good whore she is.

"Don't worry, I'm not mad at you, if anything I'm slightly impressed that you've been taking it up the ass so well. Of course, now that I'm home you'll have to put that pussy to use in order to satisfy all of us won't you?"

"Yes of course sir." She squeals.

"You there," you say, addressing the guy still going to town on her ass, "lie down so she can ride you." He does as you say and lies back on the couch. Tracy climbs on top of his dick and starts riding him.

"Seeing as you two have already been using her asshole this whole time, I'll be taking over for now." So you climb onto the couch behind Tracy and line your cock up with her ass. The third guy gets the hint and heads towards her mouth to resume the head he was already receiving from your cock hungry girlfriend. The three of you are now each fucking one of her holes, completely out of sync but perhaps this just adds to the sensations Tracy is experiencing right now.

You notice from your position that Tracy is already dripping wet in her pussy despite not having had it used since the vibrator was in her pussy at work. She must be struggling to stay focused right now and ensure she doesn't cum. You start absolutely demolishing her asshole, really giving it to her as hard as you would her pussy now that she's had a week or so to get accustomed to the feeling of having her ass reamed. She seems to be taking it well, and also has managed to hold down her orgasm despite the overwhelming stimulation she's receiving.