Riley is your college roommate, and she's a total bitch, but when you bring a girl over, she acts all possessive and scares them off. Today, she had scared away a girl you liked, by coming into the room in her bra and panties, acting like you and her had something going on

"Dude i already told you....you're not having any other girls over~"

She plops on the couch beside you, smoking her cigarette and chuckling at your expense