A great demo, and definitely a game with a lot of promise. The renders are exceptionally high quality, the pacing is good, and the writing is also fairly good.
Penis size isn't my cup of tea, but if that's what the dev is interested in making then I can tolerate it.
I think the only real constructive feedback I can give is on the writing. At times, I often felt like the main character was too much of a downer, plus the writing about her 'condition' was a bit repetitive and heavy-handed, so it was a bit of an eye-roll to read the MC's monologue. Hell, i felt that way from the very beginning just before Blair addressed the MC.
A little nitpick for something that left me a little confused is when Luna got angry at Skye, as that anger felt like it popped out of nowhere. As the scene exists right now, the whole scenario is lighthearted with the friends bickering and the whimsical music. I feel that maybe the emotions of the MC might come across clearer if the emotional feedback was instant: e.g. right after Skye tells Isaac to stand up for Luna, Luna's thoughts come into focus with the bickering of the other two characters being more in the background.
And another little thing, I think it would be a lot funnier if instead of 20 minutes, 10 minutes and 10 more minutes passing during Hazel's monologue, it was 20 seconds, 10 seconds, and then 10 more seconds. It would mirror the excruciating pain I feel myself whenever I come up upon a yapper in my own life. That is unless you wanna intentionally make the family seem more patient.
That's about it otherwise, nothing else in the writing really jumped out at me as odd, so it's well written all in all. Don't take my writing suggestions too seriously though, I'm not much of a writer nor reader myself, so I may very well be wrong.