Great game! I know the dev's got a lot planned and this game is still in its early stages.
This is just a wish that I have for the game. I don't expect it to be taken as a priority at all. Just something that I hope the dev could consider.
I would like it if the Famer Girl and Alex didn't lose all of their personality when you buy them. I like the different attitudes they have, but when you buy them, they just submit to your contraption and that's it.
I also think the trade to get them is a bit odd too. The Farmer Girl seems to want you to have a high end setup before she'll get in your trap, but the trade is just 3 wool and 3 milk to convince her. It would make more sense if you needed to upgrade the bed and the piston before she would even consider offering herself in a trade.
And then Alex. It seems she would rather kill you than step foot on your farm. The trade of 3 gunpowder and 5 emeralds doesn't make much sense. Maybe if there was some reasoning that she needed those materials, but even then it doesn't make sense for her to submit to you. I think you should have to craft and trade for materials to kidnap her. She should be furious that you've mounted her in a sex machine. I think that would make for a much more dynamic experience.
Maybe it's too extreme, but I've read the list of what's planned and it seems like the dev plans on adding more kinkier stuff.