i just want to offer a small critique, honestly. Everything is pretty damn good except the relationship transitions need to be a bit more subtle for realistic effect. the more real it seems it could be, the better it actually is. for example the blonde girl, you portrayed her as modest and prudish, so keep that going. her relationship should be slow going and should just be dialogue for awhile. and just as important as that last point, there should be something that ties their relationship together like the brunette with writing reading. maybe she play recreational soccer and the mc is the coach. and she comes over for 1v1 practice... see where im going? and maybe the first time the mc and her kiss is after a practice session at the mc's house she stays over for a bit and they watch a movie. then the second time she stays after practice she tells you its her birthday and you have to give her b day spanking and her first kiss! she would be nervous but you would talk her into it because their relationship is on solid ground now. idk something like that.
sublte :) and thanks for what you already have going!