Sex Precept: There's No Learning Curve

We have this mythology of there's no learning curve when it comes to sex. How do we expand our sexual repertoire without feeling the pressure? We want to be able to feel more confident in sex, but then approach every encounter with curiosity,. And that's so much of the beginner's mind attitude, right? So it's not saying being a fumbling novice. i am embodying this and practising this all the time.