Stuntcock said something about how lots of people end up playing the game. That sometimes you use the sex menu just to quickly accumulate mana, rather than act out fantasies.

So maybe adding a button to the bottom of the intimate interaction menu, or slaves talk menu, that lets you have a quickie and gather a chunk of mana would be useful. Personally, when skipping through 20 actions of sex dialogue, it feels cruddy & repetitive because that's not how it's meant to be used. It lessens immersion. Sometimes you just wanna cast a load of spells on bandits though hahaa.

It could still take up a slaves interaction for the day, maybe you couldn't have multiple partners and only access it when a slave is willing and has high lust or something. But still get increased mana gain from nympho and drows?

(I realise this wasn't stuntcock's point, just thought it might prevent people blitzing through the sex menu. Make the exploration of that mechanic "How am I gonna get closer to this person, what options havn't i tried?" rather than "What is the most efficient way to harvest some magicy sex juice?")