Pile: Slampig - The Girls You Pass Up, I Pick Up (2010)
Slampig is a novel about a man named Pile who spent his twenties sleeping with undesirable girls. He took advantage of every opportunity to have sex with cougars, fat girls, and the emotionally unstable. It was fun for awhile, but after he reached rock bottom with a purple-haired fat chick, his friends nicknamed Grimace, he tried to find a decent girl to have a relationship with. Pile soon realized that having a relationship was a lot harder than "pigging" and kept falling into old patterns.
Recommended if you like
I Hope They Serve Beer In Hell,
My Horizontal Life,
The Catcher in the Rye.