Kay held tight onto Illiri's wrist as the changes began to take hold of her. "Leery, what's happening to meee~?" Her body stretched, shifted, remade itself as the energy of Merces' milk infused her very being with a surge of curative energy. Not only had her sex stopped hurting, she was positively burning up with intense pleasure that only intensified as her breasts began to swell. There was this enormous pressure inside of her, straining at her skin and filling her every nook and cranny. Even her face changed, though she never quite lost that innocent, youthful cast to her features. Her wings, once useless little fluttery things, grew to the proper size for a succubus. Black and shiny and strong, she wondered if she could finally fly like some other demons. As the change began to slow and all her various sexual characteristics seemed at last to be settling into a final shape, a last, sudden surge of power rocked her with a mind-shattering orgasm. She collapsed forward into Illiri, wings and arms wrapping around him as she moaned into his chest.
Kay sank to her knees, her juice running in thick rivers down her now shapely thighs, and looked back over her shoulder at the succubus who had healed her. "T-thank you," she said. She turned back to Illiri, and realized that she was now at eye level with his crotch so she began to nuzzle it through his pants. Looking up at him, she smiled and gave him her best, though admittedly amateur, effort at bedroom eyes. "Fuck me," she said, though there was no trace of the mindless panic in those words as her younger self would have used them. "Fuck me." These were the throaty, needy words of a fully developed succubus, though they bore no magic, no sex aura, no spells to trap or entice him. It was merely a statement of her desire. "Fuck me, Leery." She adjusted herself so that her ass was in the air, giving Merces a good look at the changes she'd wrought to the little demon's sex, which was now open and pink and inviting and oh so dripping wet. "Fuck me, Merces. Fuck me, both of you, please I beg you."
She nuzzled Illiri's cock more, sucking at the outline through his clothing and feeling it start to harden again. She wanted to suck all of Malene's juices off of him and leave him smelling of nothing but her, so that his scent would proclaim him as hers. There was something else, though, something tugging at the corner of Kay's mind, another kind of energy deep within her that she'd never felt before and centered deep inside her womb. Kay spread her bottom for Merces and sucked harder on Illiri when she finally realized what it was. Kay was fertile.