On top of my head...
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Kinks I'm interested in.
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Males I'm interested in.
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Monsterfolk I'm interested in.
-People of those three kinds you could snuggle up and have sex with.
-No stereotypes.
-No kinkshaming. "
Are you enjoying this, bitch?" Why yes, I am - here's hoping you like the canine bits too!
-Detailed customization, e.g. fine tuning TFs and having ways to use weapons/armour you like and keep them with good stats with a customization system. Alternatively: keeping the offer diverse enough.
-No sob stories.
-A good smut-story balance (I liked what I saw so far in that aspect).
-No walls of text (I liked what I saw so far in that aspect).
-Non-Imperial measures when available.
-No gated contents, though I aknowledge it's the writers' prerogative.
-A "give up" option in battles. For those times you just want the lewds and bad ends.
-Speaking of which, how about a "diplomacy" option for those times you don't want to maim a prospective smut partner?
-Or... how about ways to avoid sex scenes when possible?
-Middle grounds, e.g. gentle doms, neither pure nor corrupted characters.
-Targeted items that affect one thing in particular. TiTS has showed they do work.
-A fake pregnacy item with different iterations (viviparity, oviparity and slugs/worms/bugs/tentacles/small wiggling critters).
Things that won't happen but I'd like to see...
-Kinks/pairings toggle. Ideally, I'd like to see a system akin to that of "warding" encounters in Flexible Survival.
-Control over what the character does in regards to sex scenes.
-Personal hideouts! Be it some tentacle-y, flesh-y cave to some lavish palace or some ominous temple.