I don’t know if there’s a fetish for “anthropomorphic objects being inserted into you that radically change the shape of your body” but (as I discovered) there are a lot of people for whom this is the turn-on they didn’t know they had. I like actualizing peoples’ subconscious fetishes. I’m the fetish fairy, shhh.
Also, Bad Dragon, get on this. There’s a market for it in Toontown.