2 Works in Elsa (Disney)/Harry Potter
Various one shots Harry's various naughty adventures(or misadventures, depending on your angle), with women. Not for children.
When the Killing curse backfire it sends baby Harry into the past to a kingdom allied with Arendelle around the time Elsa is born. I suck at summaries so read the story it is good in my opinion. Pairing will be Harry/Elsa