Optician.

A man goes to the opticians to get a new pair of glasses, the optician checks his records and finds that the man only had new glasses less than six months before. so he says to the man, "How did you break them, if it was in an accident, we might be able to replace them free." the man says, "I broke them by kissing my girlfriend." the optician says, "how can you break your glasses kissing your girlfriend." the man says, "she closed her legs."