[F4A] it’s your birthday. After a long night of partying, you return home to find your real present (am I your roommate? Sister? Some random slut your friends arranged for you to fuck?)
[F4M] The young sultan of Qasir while visiting the slave markets for his harem sees two beautiful sisters being sold separately. (More info in comments)
[F4A] You just helped bust a huge sex trafficking ring. Most of the girls have gone into witness protection. You decide to help out and take one in (rescue/CNC)
[F4M] - As the youngest son of a powerful Empire you would have never sat on the throne, so your parents married you off to an immortal Elven Queen instead.