VN Ren'Py The Loving Son

The Loving Son follows a young man whose adoptive mother is a futanari from the planet Pink Balls. She bought him from space pirates as a baby and raised him as her own, but as he grows into adulthood, his dream of becoming a space bounty hunter and finding his biological mother runs straight into her plans.

His adoptive futa mom has no intention of letting him go, and her love is far deeper than motherly. His intoxicating pheromones ignite uncontrollable desires in both her and her seductive best friend, blurring lines that should not be crossed. The 3DCG renders and kinetic novel structure carry the look.

Futa/trans and futa/trans protagonist routes both feature, alongside adventure framing, big-ass and big-tits design, drugs, incest, and lactation content. If you want a sci-fi futa mom kinetic novel with strong worldbuilding and a focused central pairing, The Loving Son commits.