There is a deep rabbit hole of sexy anime experiments on the Lewd Fraggy Youtube channel.
In this video demo, we see the adult 3D game Sexy Beach 3 (Sexyビーチ プレミアムリゾート) hacked for VR. The way the game works is you build ‘trust’ with each girl by taking her on dates. And this gives you more and more ability to play with her.
If you’d like to try it yourself, realize that it’s actually very tricky to get working unless you are quite technically advanced. We say wait a bit and stuff like this will be readily available to all.