Twilight and co have been sent to an alternate universe by a mysterious pony who needs them out of his way so he can conquer Equestria.

The girls need to find a way back in order to stop this threat, they find a pony who can send them back but there's a catch.
They need to beat him in a boxing match, if the girls win he'll send them home but if they lose.
Each girl that loses to him must serve him as his vassal, his own personal sex partner (and possible companion).

With the stakes so high can the girls ever get home?.