Being married to the ex-princess of the sun tends to get you involved in strange antics. Like, all the time. Frankly, you wouldn't trade it for the world.
A human with no knowledge of the MLP Franchise gets displaced into the world of magical talking ponies. To sweeten the deal he is effectively turned into an RPG character.
Rainbow Dash comes home to her marefriend Applejack. After a busy day of farmwork, Applejack has some fruit that she needs to count. Rainbow just wants to sniff her mane.
A crashed ship is discovered on Luna's moon with the survivors barely clinging to life. Unable to treat them Twilight and her friends attempt return them home, but end up on an adventure spanning an entire galaxy. Elite Dangerous Crossover
A being supposedly defeated by the great heroes somehow got transported in a world full of sapient equines, where friendship and love is everywhere. What could possibly go wrong?