You ask Isabella how recently she's fucked her brother

You're not sure if you've ever felt Isabella be so wet before and you tell her this. Thinking back on her incestual experiences really has her going.

You ask her when the last time she fucked her brother was. You can see that Emma is as eager to hear as you are. She's got a couple fingers deep in her pussy.

Isabella tells you that the last time she and her brother fucked was before she went to college. It was just that one summer of (a lot of) fucking. In college she always had a boyfriend. It was always one after the other, but always had one.

She brought a boyfriend home with her for Thanksgiving her freshman year - it was her first time being home since their summer of love. She tells you how she could see in her brother's eyes he was disappointed, but they never talked about it.

The Uncle Daddy nickname stuck, but that was their only acknowledgment of their shared experience.

Isabella's mood shifts as she thinks about how long it's been - you can see she has a new hunger for her brother. So as you fuck her you tell her that she's going to fuck him again. You'll make sure of it. You tell her you want to see her fuck her brother - perform **** in front of you.

Emma chimes in that she wants to watch too - then she takes her fingers out of her cunt and lets Isabella suck off her juices so she can taste just how excited Emma is.

You get Isabella so worked up thinking about her brother and the taboo of **** that she cums on your cock. You feel her cunt squeeze on your big cock as she orgasms.

Then you gift Isabella with your creamy seed - spurting an enormous load of your cum deep inside her. Your cum slut girlfriend, of course, then takes her usual position between Isabella's legs to accept your cum into her mouth as it seeps out of Isabella's sensitive fuckhole.

You go off to clean yourself, not even staying to watch the girls swap your cum between their mouths. You know you're a lucky guy when sluts sharing your cum is an every day experience. What you really want to see to push the boundaries of naughtiness is some hot brother/sister action.