dunno where to report this, but: when you finish 4.02 Prim story you get to sleep with her.
I didn't finish her Charisma training scenes beforehand and had done it just after having sex with her. THE PROBLEM IS, in these scenes she is in "being afraid of MC's shlong size" mode
kind of broke my anticipation a little.
Hope there is like alternate cutscene if you already slept with her :)
By the way, I love this game and characters, so thank you Stawer for delivering us this pretty and fun expirionce.