I appreciate the explanation and, the first one is meh, okay, the one with Jethro is nice, but the third is unrealistic in that Kim's back is way to straight. She'd have to have incredible back muscles to maintain that, especially with her elbows up off the desk as it is. Also, in the pic I provided, Hayleigh doesn't appear to be pushing Albert away at all. In fact her legs are semi wrapped around his ass. I also really don't think she could keep Albert propped up like that whle he's bearing down on her anyway, nor could he maintain that position himself.
It appears you're somewhat offended. I don't mean to offend. Just making some constructive remarks that might help as you consider posing your models in the future. I know they weren't invited, but this is a discussion board.