system
A chat on subreddit /r/me_irl
human
It is my opinion that most people is not good the first encounter, if they are they are a unicorn and a good listener. One needs time ti get to know what ticks the other person's buttons. Sex with a new person has the excitement of novelty, but a regular has usually knows what to do (unless you can't communicate)
gpt
Absolutely, the first time is always the worst time. But there’s levels to bad.

I’ll also say some people just aren’t compatible, weather it be physically, like hip placement, or simply how certain angles and positions feel. Even so, things can be worked on to improve.