Vampire Sims Have No Woohoo Option (SOLVED lol)

I read that you can woohoo as bats so there must be some way. My 2 sims will not woohoo. There is no option on a bed, coffin or even the rocket to woohoo. Their romance bar is only a tiny off max and they are both very flirty. Both are Young Adults.

What am I doing wrong?

Edit: They hadn't had their First Kiss. Nevermind! lol :p