What do girls after sex with Pinocchio?
Wash off the birch sap from the face.
Birch Sap
Explanation
Explain Bear
Listen up, buttercup. Pinocchio is a wooden puppet whose nose grows when he lies, which makes him a tree. The joke is about the 'birch sap' that is coming from Pinocchio. I can't spell it out more or I'll get fired.