>>295515996
you could pull a lot of it off now. Essentially just build pulse and grip animations and use vertex frag mesh shaders to interact.
you can already build avatars that interact with each other WITHOUT any modding, mesh particle interactions that depend on one another are already a thing, you can build for example a collar and leash that two avatars built for each other can use together.
or a kissing system that leaves spit lines between mouths all of this is possible now without ANY modding to the vrc client with just shaders particles and constraints.