You can get it here with a 10% launch discount:
https://store.steampowered.com/app/3474720/Slut_Metamorphosis/
Thank you for your support!
Our new NTR game Slut Metamorphosis is out now!
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.