A Humorous if Inappropriate Story

This post will contain a funny bedroom story (or living room, I guess for those of us who have children in our beds;) ). It may be embarrassing and/or innapropriate. If you are of the mind that people ought to keep such things to themselves, stop reading now. Otherwise, read on and feel free to tease the brickman later.
So my husband and I were, um, canoodling on the couch. He stood up and was, er, removing his clothes. At a very opportune time he stepped on one of Levi's toys which said in a high-pitched singsong voice, "So-o Big". I couldn't stop laughing for an amount of time that was not strictly convenient.