Basically the story Goes he was thrown from the Human world to the pony world by an evil villian from his world he was fighting. Over time he grown to love being a pony and find out he can do other things also that he couldnt do in his world.
The first Mare he ends up meeting is Applejack which he quickly has a crush on and wants to go out with……. and do other things to her. but along the way trying to get to know Applejack. he ends up by mistake getting to closely know every other Mare in Ponyville including sweetie Belle before he even gets close to Applejack.
Thats the short story. Have fun with this picture more is coming soon