I totally understand that it's a lot of work, no worries :D.
(player block, player hurt, NPC prepare, NPC attack). That is pretty cool! I really like the plan. Would play pretty well with a turnbase. But yea, animations are going to be the most time consuming bit. Lotsa different loops and positions.
Your base loops are pretty solid! You could simplify it down to `basic` and `intense/pre-climax` loops and speed up the animation player a little bit. Blocking out a more exaggerated pose for the loop with a follow through could considered to be an 'attack'. An example would be a deeper position of the loop or an exaggerated hip thrust. You could also use smacks on hip and/or kissing as an 'attack'. In which both can be used on each other depending on the position and playfulness.
I'm just here giving out ideas, so take it with a grain of salt lol. Anyway good luck with the project! I believe you're going to do great, so don't worry too much :D.
