Shawna Roberts is the girl that every guy turns to when they need a fake date, a fake girlfriend, a fake fling to make some other girl jealous, a fake couple photo to send to their parents... Shawna's pretty much seen it all. But no matter what they pay her for, everything she does has one common factor: it's all fake. That doesn't make being their paid girl much easier, though. Adam Ferrell is the campus heartthrob with the appearance of a god, an ego the size of Canada, and worshiped by everyone to monumentally ridiculous proportions. In Shawna's mind, it's a miracle his head fits through his shirt every morning. Yet despite their instant dislike for one another, Adam and Shawna each need what the other can offer. When Adam unexpectedly pushes into Shawna's life with a business deal, she's torn between her feelings and her sense of duty, which protects a secret she has kept for years, from even those closest to her. And as the two begrudgingly get to know each other, masks start slipping and secrets come spilling out, forcing each of them to confront some of their darkest moments and deepest fears.

Callie Picket,the-fat-girl-next-door has a big fat secret. Well, a secret she's been successfully hiding from her oh so sexy apartment neighbor Chris Walker. In their first meeting, he mistakes her for a fat guy and she does nothing to correct him. "That awkward moment when the man you love doesn't know you're a woman" Very over-weight 22 year old girl Callie has a mega crush on her hunkie new apartment next door neighbor Chris ...(age 24). The thing is, since Callie is so overweight, Chris mistakes her for a guy but she doesn't tell him the truth because they've become buddies and she doesn't want to lose that bond with him. Then Chris makes her start going to the gym to lose weight and as the pounds comes off, Chris begins to see these changes...like Callie starts to look more girly, and since he's a total playboy and lady lover, he starts getting attracted to her while thinking that she's still a "he". Basically, he thinks he's going gay. Will Callie ever tell him the truth as her lie begins to take its toll on both of them as she and very confused Chris becomes closer? Or will he be the first to finally see her for what she truly is? A Big Fat Liar.