I don't see this ever happening, as romance in Cyberpunk is quite intimate and meaningful.
I could see it happening with random joytoys on Jig Jig Street, because it's a place strictly for pleasure. But can't see this happening with V, Panam and Judy because Panam is not even into girls. Can't even see this happening with V, Judy and River because Judy is not into guys.
So it would be contradicting the character personalities and make them extremely shallow. I do however wish there were quests that would bring companions together so they don't feel like they're existing in their own universe. Like I wish I could bring Judy along for River's family dinner and such situations.