Three couples go camping and one couple forgets their tent. So they decide the men will sleep in one tent, and the women will sleep in the other.
In the middle of the night, John says, "Bob, look at this fucking hard-on I’ve got. It must be all the fresh air. I’m going over to see my wife."
Bob says, "You want me to come with you?"
John says, "Why the fuck would I want you to come with me?"
Bob says, "Because that’s my cock your holding."