[NSFW] How much does your wiener weigh?

Litte Joe: "Daddy, how much does my wiener weigh?"

Dad: "I don't know, I guess about 3 ounces"

Litte Joe: "And how much does your wiener weigh?"

Dad: "I don't know, I guess about 15 ounces?"

Little Joe is intrigued and goes to his grandfather.

Little Joe: "Granddad, how much does your wiener weigh?"

Granddad: "I don't know, but it must be a lot, because your grandmother can't get it up"