Boy And Dad Joke

Little Johnny walked into his dad's bedroom one day only catch him sitting on the side of his bed sliding on a condom. Johnny's father, in attempt to hide his full erection with a condom on it, bent over as if to look under the bed. Little Johnny asked curiously "What ya doin dad?" His father quickly replied, "I thought I saw a rat go underneath the bed, to which Little Johnny replied "What ya gonna do, fuck him?"