This story used to be in the weight room. There were two girls (can't remember their names) who lived as roommates. The "main" girl used to be a thin girl but she'd gained quite a bit of weight after the uni had started and she'd moved on her own. Her roommate and her usually order pizza during weekend and then watch a movie together. At the start she realizes she gets turned on by her chubbier body. The other girl comes home, bringing 2 pizzas instead of 1. The other girl mentions that she's a bisexual and tells that she likes girls with more weight and they end up stuffing the heavier girl and having some lesbian sex in the end.