Two gay men are having passionate sex in the shower when the front doorbell rings. One man says to his partner, "I'll get it. Be right back. Just don't cum before I get back, okay?"

He gets out to answer to door.

When he comes back he sees that the shower is covered in thick white stuff. Annoyed, he asks, "What the hell? I thought I told you not to cum."

His partner replies, "I didn't. I farted."