Will Derrie has a problem. He's twenty-one years old and there's something terribly wrong with him. He doesn't like sex.He wants to like sex, but even when he's totally into his girlfriends, he still has to run a movie in his head to get through having sex with them. And the movie? So not okay. (His imaginary mistress spanking his ass keeps getting interrupted by his real-life girlfriend whispering sweet nothings in his ear.)When his twin brother...