Sexual Intercourse.

[Timekeeper]

I also accept your terms, but I'll have to keep it short to stay in the game, nothing fancy here!

(SPOILER)Hagrid -> Dog -> Canine reproduction-> Sexual Intercourse


EDIT: If I'm allowed, I'd like to not accept your terms, and instead add an entry for the first round, that way I don't get the major setback.

(SPOILER)Morph-> Flashmob-> World Naked Bike Ride -> Nudity -> Sexual Intercourse