>>93749212I need to catch up on chapters 11 and 12 I think first, but on the topic of your sex scene length, it could help to peruse some of the archive and get an idea of what a nicely lengthed sex scene reads like. One that just has you feeling "that was just the right amount of sex" after you read it.
If it helps, you can also think about it from your own desire of what kind of sexual acts you want to highlight. For me I go into it wanting specific positions and lines of dialogue.