Joke on his wife
This guy decides he's going to play a little joke on his wife one day. As she steps out of the shower, he grabs one of her breasts and says, "If you firmed these up a bit, you wouldn't have to keep using your bra." He laughs and laughs. The next morning, he again catches her as she finishes her shower and grabs her ass and says "If you firmed this up a bit, you wouldn't have to keep using your girdle." Again he laughs and laughs, while his wife plots her revenge.
The next morning as he steps out of the shower, his wife grabbed his penis and says, "If you firmed THIS up a bit, I wouldn't need to keep sleeping with your brother."