"How to Get the Person You Like Away from His Girlfriend Without Breaking the Law or Morality... Though You Can Bend Morality a Little". Content warnings below.
A possessive, tearful, easily rattled tea-green top * a couldn’t-care-less, sex-indifferent bottom
Stealing someone else's partner is immoral. Luckily, he has no morals.
1. The bottom has a girlfriend when the story opens. They've kissed (just lips touching), but haven't had sex.
2. The top knows he's pursuing someone who's taken, but doesn't become the other man.
3. While dating, the bottom has no idea what it means to like someone. (Like, "Someone's pursuing me, so why not date them? Whatever.")
4. Happy ending, single-couple romance.
5. Just read it for fun.
Theme: Pursue the person you love.