A man is in a hotel lobby and wants to ask the clerk a question.   As he turns to go to the front desk, he accidentally bumps into a woman beside him and his elbow pokes her in the breast.  They are both quite startled.  The man turns to her and noticing that she is quite attractive, says with a wink, "Ma'am, if your heart is as soft as your breast, I know you'll forgive me."  She looks him up and down noticing that he is well endowed and replies, "If your penis is as hard as your elbow, I'm in room 436."