A Norse God comes down from Valhalla for a weekend of fun; does the usual things, watched the football, has a curry and a few beers, ends up having wild sex all night.
In the morning he decides that the girl should know she has slept with a God and says "I'm Thor."
The girl says
Spoiler:
"Tho am I, but it wath fun!"
Of course it'll fit; you just need a bigger hammer.