What's your favorite and least favorite smut trope?

For favorites I would say 'only one bed' is pretty funny at times. I also love BDSM ヾ(☆▽☆)

For least favorite I think disliking non-con is a given. I also don't like when human waste is involved....just no...One trope that I don't see many people mentioning is when the couple falls asleep right after they did the do and it drives me up the wall because it's nasty. WASH IMMEDIETELY AFTER BECAUSE OTHERWISE YOU GET DISEASES!