The NTR is silo'd into its own game, My Futa Valentine
There's some poly Futa/Futa/Male on the Demetria / Claudia route, but I don't actually know whether that'd twig your MMF dispreference. Easily avoided, regardless
Yep! Currently up on our Patreon https://www.patreon.com/FutadomWorld_Game
Indeed the Wallis release is here! https://www.patreon.com/posts/wallis-part-two-80223731