I love smut scenes that are filled with desperation. Especially if they get a bit dirty. There's a good blowjob fic that was written for Finn/Poe that fits the bill but I've forgotten the title. But basically Poe gets back from a mission and is just like, 'I can't keep my hands off you' and blows Finn in a storage closet or something. I looove fics like that.