Pinocchio

Pinocchio had a human girlfriend who would sometimes complain about splinters when they had sex. Pinocchio therefore went to visit Gepetto to see if he could help. Gepetto suggested he try a little sandpaper wherever indicated and Pinocchio skipped away enlightened.

A couple of weeks later, Gepetto saw Pinocchio bouncing happily through town and asked him, "How's the girlfriend?"

Pinocchio replied, "Who needs a girlfriend?"