Just played 0.05a - sorry, Cheeky.
Buildup continues to be good, and the new girls are intriguing in their own way. More invested in the existing cast, because of the backstory, but once the player has made some progress with them, it'll be nice to have some tangents to explore. And call me casual, but it's nice having the correct dialog choices be fairly predictable at this early stage. Plenty of time to try trip up the player once the stakes are higher.
One improvement I would suggest is regarding the number of renders for the hot scenes. Right now, it feels a little on the light side. When the text talks about the characters getting more physical or shifting position, and the image stays the same, it pulls you out of the game a little. Examples:
• Monica gradually dropping lower onto your body while in the straddle position till she's rubbing against you.
(In this situation, if repositioning the characters to show the position shift for multiple renders is too time-consuming, even a close up render of their crotches touching in the same position would be a good escalation frame.)
• Grabbing Monica's waist or ass while she's straddling you.
(I imagine it's a lot of work rendering the different options for these choices, especially if you have the possibility of different expressions for each. But even rendering a new shot only for the 'correct' choice would be a lot better than having the image stay the same, no matter what.)
• Spanking Katie
(A spanking scene without showing the spank landing! Unforgivable! :'()
To riff off the last point, a little audio would amp up the impact of the scenes significantly. It'll be a royal pain to voice everything, but if you can restrict it to the hot parts of the scenes and not include any actual dialog (just stuff like spank+yelp, moans, etc) it could be manageable. Of course, you'll have to do a bit of clip-hunting to be true to the characters - make sure Monica sounds older, make Zarah sound a little trashy, etc - so it's no picnic, but I think it'd be a huge boost for scene enjoyment.
P.S - When I was trying out converting a game to Renpy, what I did was assign a pornstar for each female character (basically just roughly matching age and ethnicity) and then cut audio from their scenes for the matching character. If only my interest in execution lived up to my planning. Oh well.