Parents in the Shower

A salesman rings the door bell and Little Johnny answers. Salesman: "Can I see your dad?" Johnny: "No, he's in the shower." Salesman: "What about your mother? Can I see her?" Johnny: "Nope. She's in the shower, too." Salesman: "Do you think they'll be out soon?" Johnny: "Doubt it. When my dad asked me for the Vaseline, I gave him super glue instead."

I Need a Bike

A few months after his parents were divorced, little Johnny passed by his mom's bedroom and saw her rubbing her body and moaning, "I need a man, I need a man!" Over the next couple of months, he saw her doing this several times. One day, he came home from school and heard her moaning. When he peeked into her bedroom, he saw a man on top of her.
Little Johnny ran into his room, took off his clothes, threw himself on his bed, started stroking himself, and moaning, "Ohh, I need a bike! I need a bike!"

Beaver's Tongue

Johnny was playing outside when he really had to go to the bathroom. He runs in and his grandma was about to take a shower. He looks at her crotch and says, "Whats that?" She says, "Well, it's a beaver, Johnny."
The next day the same thing happens, only his mom is taking the shower. He says, "Mom I know what that is. It's a beaver, but I think grandma's is dead because it's tongue is hanging out."