Pinocchio's sex problem

One day Pinocchio was moping around his home and his dad Geppetto said, “What’s wrong Pinocchio?”Pinocchio: “Well every time me and my girlfriend has sex she gets splinters, what should i do?”Geppetto: “Well Pinocchio why don’t you try sand paper?”The next day Geppetto says, “So did the sand paper help your girlfriend have sex?”Pinocchio: “Who needs a girlfriend when i have sand paper?”