Both kids are in the bathtub and I'm soaping them up. Because "only members of the clean butt club get to eat cookies!". Son looks over at daughter and then down at himself.
Son: So it's like (pauses) I'm a single blaster Transformer and she's one of those double blaster Transformers.
Me: You mean your penis and her vagina?
Son: Yea! (stands for emphasis) Mine's a single blaster.