0.o Are you a OUAT fan cause I is [I finished all three seasons {I lurve Killian} and I have to figure if I wanna see the Wonderland one...] <3 anyway, I found some plots I'd be willing to try out. 

Master/Slave
Pirate/Captive
Demon/Angel 
Werewolf/Girl
Princess/Knight 
Mafia Girl/Police Chief's Son