imgur.com category @wanker_white
You know how some guys can twitch their pecs? Well... (GIF; Xpost from /r/IWantToFuckHer)
imgur.com category @NutSackForLust
You could cut through the sexual tension in this scene with a knife [Psycho-Pass]
imgur.com category @mikeybthehuman
You often find your cows rubbing themselves like this if your late to their milking
imgur.com category @honi_yudani