Undoubtedly the most erotic thing I've seen since responding to an OKCupid message from a girl named The Violator. Results were similar if you replace 'cumshot' with 'Hellmans Tartar Sauce'. And 'private affair' with 'Burger King during rush hour'.
What happens when you put a huge cock and a tiny asshole together and shake it up a whole bunch? Prolapsicus maximus, that's what. I never finished med school but it's my professional suggestion that she pick up a pack of band-aids on the way home.