I will try to keep this concise as possible, but I had wondered about the current penetration options. It could use a little fleshing out, so to speak.
If you already have planned this, I apologize in advance. This can be read as both a suggestion and question, I suppose.
What I had in mind was the current "dynamics" of the penetration and wondered if there is a possibilty for a sort of separate insertion speed, that a single male subject, for example, thrust in quickly but recedes slowly.
On that note, why not add the possibility for a "out-of-sync" humping? As in, two subjects hump at each other at a different pace? Would add some spice to it all.
Last, the current female humping mechanism. This addition was a welcome one, indeed, but it currently feels a bit stiff. Would it be possible to make the humping a bit more... "independent"? Like, the female fully angles her hips foward before she is fully penetrated, or something the like? And would it be possible to add gyration to the movement? Would make it feel more fluid, I believe.
Now, this are just opinions and questions, etc. I understand if you do not agree or if some of them are to hard to achieve, or perhaps you've already considered them? Either way, thanks for all the hard work.