A young man went into a sex shop to buy some condoms, and a sales girl approached him.
Sales girl: Can I help you, Sir?
Young man: Yes, I want to buy some condoms.
Sales girl: What size do you need, Sir?
Young man: I didn't realize they came in different sizes. I don't know what size I would need.
Sales girl: May I hold your penis to tell what size you would need?
As she was holding the penis, she called for assistance: "Give me a small one... Wait! Make it medium...Wait! Make it large... Shit! Give me a tissue !!!"