Adding my two cents once again, honestly I found the sound effects during sex and lack of screen effects to be kind of jarring.
Maybe pull off what Captivity did and use some pink filters that increase as you are closer to orgasm and maybe even flash or pulse slightly to the rhythm of whatever is being done to you, other then that making the sex sfx more lewd or squishy(?) Is something you should consider.
The gameplay is fine though, it's nice and smooth and you really can't go wrong with what you have right now, just polish what's already there and don't go out of your way to make a bunch of mechanics until you have the base game figured out.