Tentacles!

"Tentacles! I always loved tentacle-**** hentai. I'd love to see it live. With Lara. I want to watch her being **** by multiple writhing appendages," you whisper hoarsely.

"Watching a tentacle monstrosity... It is so boring. You can be one, my love. WE can be one!" Ava doesn't even finish speaking before you feel something really weird happening. You look down to see your own body changing shape and merging with Ava's.

You attempt to ask Ava to stop but only gurgles come out, as your tongue is replaced with a tentacle. Your hair mixes with Ava's long mane before transforming into a black swirling mass. A pair of soft breasts, which was pushing into your back seconds ago now feel like they are inside you now. Then your vision is gone, eyes disappearing morphing into something... You bring your arms, now tentacles to your face only to find a smooth surface.

Your cock, merging with Ava's arm, feels unusually large and rigid. Your pussy... You pussy!? Yes, you now feel what Ava's body is feeling. becomes another tentacle with a powerful suction spot on the tip. Your and Ava's legs become four tentacles that are used in locomotion, and the rest of your bodies merge and transform overloading your mind with chaotic sensations.

Slowly you become aware of your new body. The central blob that houses your new brain, 4 aforementioned locomotion tentacles, 2 nimble manipulation tentacles that were your arms, a long, hard, and quite a rigid mating appendage and a very different, a very flexible one with a sensitive suction organ on the tip, both coming from Ava's arm and... private parts. Finally, there are dozens of small sensory tentacles that once were hair. They offer some chemical vision that allows your new brain to form a 3D picture of your surroundings.

"We are so sexy!" you hear Ava words... no, not hear, feel in some new alien way.

"What have you done!?" You ask back, trying to talk but instead releasing a set of pheromones that conveyed this message.

"Don't be so dull. It is very reversible. Look who is unfrozen!"

Indeed, Lara who has just been **** by a man looks at a new you with fear on her face. Tomb Raider has seen many weird and dangerous things but nothing could compare to your new form. Even she is frozen in terror, at least for a moment. Weirdly enough, You can 'see' her scared facial features (and the entirety of her body) from all directions at once, giving you an entirely new way of enjoying her elegant beauty.

"Can you stop enjoying your new chemical vision and start fucking her?" even without using audial communication, Ava is able to convey her annoyance with your inaction.