have you considered having weight affect the ratio and image of the slaves? Personally a bbw slave would be a huge plus, as well as being able to keep up to 4 slaves rather than 2. If your thinking of adding animations for the deepthroat and bondage throatfuck stuff that would be huge as well, definitely think I'll be subbing to this amazing project!
I've considered at least some weight gain renders, but I'll have to finish all the standard originals first. I've also experimented with animations so that's hopefully something I can implement further down the road.
Next update will see an increased slave cap (4), as a first step.
You're more than welcome to subscribe! It would be very appreciated. :)