Others Wife's Bedroom

Wife's Bedroom is an aplove simulator visual novel. The setup is direct: you hear loud noises from the other side of the house, your wife has her girlfriend over again, and they probably won't mind if you watch.

The dev warns openly: the game contains explicit content for adults only, and fetishistic content (notably futanari and excessive liquids) that may not be suitable for everyone.

The 2DCG anime art carries the cast and content threads pregnancy outcomes, animated scenes, big-tit / big-ass character work, creampie, futa/trans, internal-view, mobile-friendly UI, monster girl encounters, point-and-click flow, simulator depth, spanking, swinging core dynamics, voyeurism core, and the wide adult tag stack the voyeur-cuckolding register supports.

A focused niche entry built around a single specific kink the title openly stakes out.