Nobody would exist without sperm. Keeping this in mind, the lack of attention given to the milky secretion by artists worldwide is actually rather surprising. Well, we’re glad to help out: C.U.M. is a collection of pictures and drawings dedicated to the hot stuff—and it’s just as horny as it is brilliant. Top artists such as Tom Bianchi, Zack and Giovanni guarantee an aesthetic approach—no matter how juicy the topic.