In the heart of Imvu's virtual world, a night dedicated to the art of twerking has users' avatars gyrating and grinding, their 3D asses bouncing in rhythm to the bass-heavy beat. The room pulses with sexual tension as players' avatars, clad in skimpy outfits, simulate fucking, their digital forms intertwining in lewd, explicit dances, the air thick with the scent of virtual sex.