Possess her

As Nakka turns around to grab utensils, you place both of your hands to the sides of her head, and before she is able to render them you wipe her mind. The moment you collect all of her memories she falls to her knees and stands limply like a puppet. Pulling up her 5 tails you first stick one clawed hand inside her vaginal cavity and feel nothing, stretching it out disproportionally you see a dim light going through her lightly opaque skin, with holes entering each of her limbs. Sliding your hand into her left leg you try to move your hand to your face and flex your fingers, and much to your delight her leg bends unnaturally and her paw flexes too. getting wet by the revelation, you take your hand out of her leg and slide your legs into her incredibly tight vagina, taking over her own.

Walking around as this chimera of demons is becoming harder by the minute so you pull her vagina even larger before diving in completely. Feeling around, your tail slides into one of Nakka's and swishes around, feeling the breeze on it's new fur. Even more pumped you push your hands into her front legs, gaining control of them as well, though now you're stuck. After a while of trying to slide your neck up with your hands in place you start to feel yourself grow, your ass shrinking and growing four more tails, your hands turning into legs, and your neck growing new hands and becoming the length and size of Nakka's upper body. Now able to reach up her torso, you push your new pair of hands into Nakka's before testing them with a light fondle, still not inside her head you see yourself squeezing her breasts inside out before they bounce back into shape. Ready to finally take control you grab her head like a mask and push your head into her, sliding your breasts, forked tongue, and eyelids into her own and finally take control.

Walking to the mirror, you strike some sexy poses while juggling your new breasts before turning around and lifting up your tails to show off your wet pussy and puckered asshole, the cold wind causing your ear to flick cutely. and even with this giant body with even bigger assets, you feel something is missing, realizing what it was you try using Nakka's powers of transformation to make your ass grow to how it was before you possessed Nakka, seeing it inflate like a balloon you twist your tails into a hand-like shape to squeeze them, causing you to release a light moan with Nakka's voice.