How come most times I lucid dream my first instinct is to have sex?

Maybe it’s because I haven’t had sex in a while? But every time I do my reality check (Counting my fingers and usually have a 6th finger or they’re all twisted and broken looking) I’m like “oh shit I’m in a dream!” And my first instinct is to find a beautiful girl/make one appear and have sex with her. I want to experience something I can’t do here on earth like fly to the moon/another planet, go to another dimension, something like this. I’ve done the whole super powers before, I’ve flown, I’ve had battles… but 90% of the time I waste my lucidity trying to get laid lol.