Solita

Solita is an Adult Entertainment Star, working for Tun Rae at the Blue Phoenix Studios.
Fun loving, and happy most of the time, Solita is ready and willing to perform any role in these short films.

The tentacles are from an attack she survived, one that wasn't aimed at her. During a battle between unknown entities, she was knocked unconscious, and seriously injured. When she came to, she had a translucent entity merged with her back. This thing produces tentacles with curious properties, including being able to phase through matter, energy absorption, energy transference, size manipulation, and more.
After training from Raven, and Tun, she gained control over the movement of these tentacles, and using them in her work life for more niche markets.
Remaining upbeat about the experience, she is also fully aware that the entity is slowly merging with her person, and will (in many years) grow to engulf her entirely, and she will cease to exist.
Until then, there's no time like the present.