No, she leaves and you fuck Quinn

"I, uh, I can't do this" Robin stutters then spits out. She quickly grabs her clothes and bolts for the door. You start to chase after her but instantly pause. You feel yourself being torn between your sexy girlfriend sister and making sure she's ok, and your insanely hot cousin who is begging for your cock. Maybe you're thinking with the wrong head, but you just assume you can patch things with Robin later. You may never get this chance at Quinn again.

You turn back to Quinn and she moans. "I guess I'll have to take care of these shorts myself," she says as she shimmies out of them and lets them fall to the floor. You quickly decide it's time for Quinn to be on the receiving end of the dominance.

You slide your hand up to her throat and grab it, pushing her back onto the bed. She falls back onto it, legs falling wide open for your. "Yes! Own me Michael! Make me yours!" You grab your head and push it up against her wet pussy lips then guide it in. She moans, then you use your full body weight to slam your cock deep, hard, and fast in her tight pussy.

Quinn screams so loud you almost worry that Robin will hear it on the trail back to the house. Only you can't think about Robin right now, just Quinn and her sexy body under you, begging to be fucked. You keep Quinn pinned down and start thrusting hard and fast. You slide so easily in your cousin's soaking wet pussy. "Don't you worry, you little slut. You're mine now. You'd do anything for this cock now, wouldn't you?"

"Oh fuck," is all Quinn can manage as she starts getting lost in the pleasure. Her moans get louder, higher pitched. You just pound her pussy harder.

"WOULDN'T YOU, SLUT?" You repeat.

She screams again, clearly loving the receiving end of dominance as much as the giving end. "Yes! I'll do anything as long as it means that cock staying inside me!" You reach down and tweak one of her hard nipples and push her over the edge. Her back arches, thrusting those big beautiful tits up towards you. You feel her pussy contracting around your cock, thankful that you have a little longer having just cum hard not long ago. She's still breathing hard when you flip her over face down on the bed. You help her in her tired state to pull her ass up a big. "Mmm, gonna finish me from behind?" she muses with a smile.

You smirk wickedly, though she can't see. "Something like that..." you say as you spread her ass cheeks and spit on her butthole.

"What?!" she excaims, shocked. "I've never..."

Quinn starts arguing but you cut her off. "I thought you said anything, slut?"

"I did, but, i mean, i've never, you know," she stammers

"Time for you to learn. Relax your ass." You tell her, as if she'll magically be able to take you right off the bat. You start off with one finger then two. She's actually seeming to enjoy it already. You could keep going but you can't wait any longer. You spit on her crack again to add makeshift lube then press your hard cock up against her hole. She moans and you feel her stretching as she slowly takes your thick cock inch by inch. "How does it feel?" you ask.

"Fuck, it hurts a bit, but it's starting to feel good. I want to be your little fuck toy. I you to own me and use me to make you cum." It's so hot hearing her say that. You wish you could take credit for writing a rule that made that happen, but it just so happens that your cousin is a huge slut. Lucky you. You reach up and grab her hair, pulling back as you start hammering. "Yes! Harder! Fuck your little slut cousin!" You hear some wincing, but mixed in with some moans of pleasure too. You can feel yourself getting close and you know you're going to empty yourself in her ass soon.

You spank Quinn's amazing ass hard and get a squeal of pleasure. You let out a loud grunt and explode, hilting your cock in her sexy ass and pumping her full. Quinn is moaning at the sensation, hand between her legs playing with her clit as she feels your balls emptying inside her. Looks like you have another anal princess that's going to need a plug. You're going to need to invest in some to have on hand if you're going to keep getting this lucky.

You let Quinn clean your cock before you both get dressed again and head back to the house. On the way you start realizing that you'll have to do something about the fact that Robin knows you just cheated on her. You start thinking of a way the Rulebook can help. You don't know if it's going to be too wide ranging, but you come up with one in your head. You get back to the house and let Quinn go back to her room, still walking funny.

When you get to your room you hear Robin in the shower. You pull out the book quick and start writing.

Old Rule: It's a compliment for a woman to have a relative interested in her man, and it would be rude not to share.

You step into the bathroom and start stripping to join Robin, wondering how she will react. To your relief, she turns to you with a smile. "Mmm, did you have fun with that slut cousin of ours, baby? I hope she didn't wear you out because there's no way she can fuck you like I can, deep throating or not. Let's clean this magnificent cock so I can remind you of that." With that, Robin soaped up your cock and balls, then rinsed them before kneeling down and sucking your cock back to life. She turned to face the wall and brace herself for one of your hard fuckings.