Crowded bus. A woman accidentally touched a man’s delicate parts.
“Oh, I am so sorry!” – she quickly pulled her hand back.
“No, no!” – Said the man. – “Look, I am a chess player, and in chess we have a rule – once you touch, you play all the way!”

Older gentleman in a hotel reception. He talks to the receptionist for a while, and as he turns around, he accidentally bumps into a young woman, with his elbow touching her breast. They are both startled and he says:
“Ma’am, if your heart is as soft as your breast, I know you’ll forgive me.”
“Sir, if your penis is as hard as your elbow, I’m in room 433.”