Really good game so far, especially to be as early as a "v0.1". Usually that's just like, proof of concept around here. This has 16 levels, a multitude of enemies, all with sex positions, a number of "end card" sex CGI (I don't mind them not being animated; sometimes the way they try and bend and stretch static images to make them look mobile gets too... uncanny valley for me), some rather good animation (not just the sex, but the walking, crawling, and in-between animation, which many games don't think about doing), and just plain cute girls (what can I say, I'm a cheap lay when it comes to that).
Besides echoing the previous concerns about the not-so-polished platforming (getting caught at the edge of a spike/acid pit has killed me more times than anything), might I suggest easing up on the necessary tokens for skins? If the first one is 500 (I only cracked about 350 by the time I finished level 16, though I used the health cheat to only have to do each level once), there's no way I'll ever see the others if it goes up incrementally. Like, I get the idea of wanting to have us go back and replay, but maybe make it more that as you progress, you naturally unlock them (by killing enemies/getting tokens in smaller numbers) and can then switch skins at your leisure to experience the game with them, rather than finishing with the main skin, then have to grind for others, which you'd be less inclined to have to go back and replay stuff just to see a reskin of stuff?
Also, downed animation gallery would be great, of course, but there's plenty of time for that in future updates. Hailey is adorable. One other super-unnecessary suggestion, but one I think would add a little character to these girls that I already enjoy. Perhaps if you finish a level with Hailey stripped bare (so she gets to the "celebration" animation, but nude), her sister might have a sort of, hand-to-mouth "oh my!" reaction, just before the score pops up. I don't know how much extra animation or programming it would take (as you'd have to make the game recognize the character is nude at the end), but I just think it would be cute to have Anna visually react to her sister jumping around with her tits and ass out. Just a thought. Keep it up!