Holy shit, that was somehow so much hotter than I was expecting. Those guys are definitely going to hang out at their place a lot more. Considering she was the one serving drinks to everyone, I have to imagine the sister drugged the brother so she could fuck everyone. Her appetite must be enormous to go out with them to fuck right after spending all that time at home.
At least she went outside for the big gang bang (which is happen next, I mean she took 3 guys already). Not the Onee-chan I admire to be honest. Sexy nonless.
So... I'm going back to my beloved incest stories in which the problem of the sister's womanly needs and her duties towards her brother are solved in the easiest way possible: she seduces and bangs her beloved brother and let's him suck her breasts resting his head on her lap while she jerks him off...
After all the fake slut hentai lately I'm pretty stoked to see a chick that actually *is* a huge slut. Not to mention these "banging a guy's sister behind his back" scenarios are really hot too.
Hmm...with a title like that, I was expecting the little brother to do something, or at least participate, but...I guess not. I mean, especially not with those tags.
Otherwise, must be nice to have a friend with a sister like that, eh? They really lucked out following him to his house. I almost feel kind of bad for the guy though, he doesn't even know this hidden side to his sister.
...He eventually might though, and if he does, I wonder what his reaction would be...Despair? Acceptance? followed by participation/monopolizing her?
Makes me want a sequel of sorts...