She fucks him.

Ellie let Piotr’s clock flop back onto his stomach with a metal clong. The ringing vibrated out, Colossus able enjoy the feeling and getting even harder, stiffness raising his meatmetal slightly off his iron abs. Now she slid on top of him, bearing the weight of her petite body down, her weight inconsequential save for the face that her pussy lips were now hotdogging the underside of his thick shaft. She was so wet and hot there, her natural lubricant running down his balls and his crack, adding extra sheen to his metallic coat. What a sight she was to behold, both Colossus and Yukio thought. That shock of too black hair, those now lust soften features, messy makeup adorable and sexy, biting down on her glossy black lips, the contrast to her naked, pale body, pert tits, stiff pink nipples aching. She was panting, grinding on his flattened out, fat cock, dragging her lips up and down, her hands on his stomach. Negasonic was never interested in anything. Always putting on an air of indifference. Now it was obvious she had a need, the desire clear on her face.

When she finally slipped up to the head of the X-man’s cock she paused, locking eyes with him. Her gaze was arresting. He felt her nails on his chest as she maneuvered into place just by the fine motor control of her hips. She was lined up, tip gently rubbing her yawning entrance, and slowly, not breaking eye contact with Colossus, she pushed back. Yukio grinned, watching the two mutants make faces at each other. The wonderful thickness that was starting fill her was played on the lip biting, eye twitching expression on Negasonic’s face. The incredible, wet hot tightness engulfing his cock made Colossus squint and bare his shiny teeth.

“Uhhhn...ahhhh…” Ellie moaned, unable to hold her silence any more and breaking it. She continued taking his length, sinking onto him, feeling herself get stretched. “Ohhh my god… so hot… your cock is so hot...” she told the man, his heated, throbbing metal so different from the cold lifeless dildo. In turn he could feel the melting molten honeypot of her tight pussy.

“Negasonic… oaaarrhh …” he groaned, then added something in breathless Russian that let Ellie know he was loving it. It almost took a whole minute, but the petite girl bottomed out on his iron cock then slumped onto his chest, enjoying the feeling of fullness from the metal mutant for a moment. He could feel her walls clutching at him, her breath fogging up buffable chest. He moved a heavy hand and placed it onto the small of Ellie’s back, gently holding her slim frame against him. Then he shifted his knees, and started to thrust.

“Ooohh...oh!” Ellie cried, getting lifted slowly as his cock pushed up into her. “Yes… ohh! …” she moaned, turning her head to look up at her teacher. She gave him encouraging nods as he sped up his thrusts gradually. She was tight and he was huge, but she was so wet for his iron cock it wasn’t any issue at all. They were perfect for each other. Perfect for fucking. He fucked her like she wanted, her moans getting louder and longer, her drool pooling into the valley between his steely pecs. He could feel her body trembling on top of him, her tight teenage cunt squeezing him hard.

Negasonic’s body was rippling. Her pussy felt so stretched. He was so solid. She could feel every bump, vein and ridge on the surface of his throbbing cock. It was better than her own fingers, than Yukio’s tongue. She didn’t think it was possible but here, impaled on this magnificent metal monstonsity, she knew she’d never be able to live without this colossal cock again. The other part of it was finally sinking into her mind too. The fact that this metal dick that her body was getting drunk on and growing addicted to was attached to her stalwart mentor, valorous member of the X-men Colossus. She was making him grunt, making his cock pulse as she squeezed herself around him. She realised she wanted him to cum. That hot sticky feeling that had been smeared on her face and coated the insides of her mouth… she needed to feel it inside her. Just the idea of it, of her mentor filling her cunt with hot cum, put her over the edge. She screamed, eyes glowing momentarily before she shut them, and her body shook.

Poitr felt it, her crushing convulsions as the teen climaxed on his turgid cock. He bared it with a twisted smile, still thrusting, still giving it to her, hammering home her orgasm for her. There was a squeal of delight from Yukio snuggled next to them, the girl giving a small clap as she watched her girlfriend cum on his cock. Luckily Negasonic didn’t explode, her body just pulsing with pleasure as, cresting as he kept sending the wonderful shocks up her cunt, then warm sensation washing over her in gentler and gentler waves as the joy subsided into sweet, sweatful satisfaction. She flopped onto his chest again, chin between his pecs, her shadowed eyelids heavy and vision blurry but she stared up at his fuzzy face with a smile. “Fuck me… that was good…”