Teenager allows roommates to use her for sex in exchange for rent

A young girl is struggling to pay her rent, and when her roommate suggests they could have some fun while she pays off her share, she is more than willing to oblige. The roomie is not her sister, but he seems to be able to satisfy her every time. He's got a thing for doggy style and she's more than happy to indulge him. It's not just the roomie, though, as it turns out one of his friends has a similar fetish. So, when the girl is in the room with them, they can't resist taking advantage of her. They take turns in satisfying their desires, with the girl getting fucked by both of them at the same time. This is a taboo fantasy that the girl has always been curious about, and now she's finally living it.