Experiment
When the battle ended and Zero's wings folded around him much like a natural bat's, X was left staring uncertainly at his changed lover. Although he had heard from others about Zero's newest upgrade they had discovered and configured, he never imagined it was quite like… that.
"Something wrong?" Zero asked, a puff of white escaping his mouth. Seeing it, he frowned and deactivated the Ice Chip his new body was embedded with, the air around him instantly warming.
"You look like…" X wasn't sure what to say, his eyes roving over Zero's form. If Zero would unfold his wings… "… I dunno, old-school Count Dracula, but Reploid-fied?"
Zero chuckled as he made his way to X, his now-icy blue eyes glittering dangerously under the sharp shadows the smaller wings on his helmet created. X could not resist the shiver of how those glacier orbs stared at him, unable to move even as Zero stood right before him and unfolded his wings slowly. They rose to their full wing span, stretching languidly before coming to surround X, more or less trapping him.
"Don't like it?" Zero asked, raising a clawed hand and gently tapping X's helmet with a talon.
X swore he saw fangs as Zero spoke. "You're as handsome as ever," the blue Reploid managed after he found his voice again. "I'm not sure about the claws, though. You know me… I like pleasure over pain."
Zero smirked, and X definitely saw fangs. "Does that mean you're not up for… experimenting?"
There was just something about Zero's eyes, how they seemed to glow, seemed to pierce X like icy javelins and made him shudder under his armor. It wasn't an unpleasant feeling, and it was similar to arousal, but it was still that uncomfortable sensation, like something dangerous, even if X knew Zero would never harm him. But this armor upgrade, those gorgeous, frosty eyes and intimidating wings and fangs and claws…
"N-not with claws," X stammered. Zero stepped closer and leaned down, their noses touching, and X felt flushed all over. "T-the fangs… m-maybe…"
Zero's wings encircled them tighter, and X felt both a bit claustrophobic and longing to be closer. "Don't mind the teeth, eh?" Zero's whisper flooded X's ear port, and he flushed that even through armor he felt Zero's breath, and it still tickled his flesh under the armor.
"Depends," X breathed, raising his hands and pressing them against the black chestplate, tilting his head back so he could face Zero fully; Zero was smirking at him.
"On?"
"How you use them."
Zero's smirk grew, his arms loosely encircling X's waist, crossing his wrists behind X and careful to keep his claws respectfully away from X's body. "It'll be in ways you certainly won't mind, I think." His eyes flashed, and once X looked into them again, Zero knew he had his lover right where he wanted.
X's breath caught as he was drawn into those eyes again, so clear and pale like real ice, but glowing with such a dominating power he felt puny. Danger whispered in his mind, battling with the knowledge that this was his Zero, his wonderful Zero whom never hurt him. His mouth was suddenly dry as the seconds he spent staring into those alluring eyes ticked by, and his throat hopelessly swallowed in response. Zero purred, seeing how the apple of X's throat bobbed through his undersuit, staring at it hungrily.
Seeing where Zero's eyes were trained, X half wanted to escape his loose embrace, to break free of his arms and wings. Yet a darker craving crept up his spine, a silly little fetish he only half-explored during their entire relationship that was shrieking through his body as Zero's fangs flashed for a moment in a quick, knowing smile. The blond lowered his face to X's neck, where he pressed a seductive, teasing kiss. X hissed, somehow feeling it through the suit, wondering why he was so hypersensitive when nothing was really going on…
"Just tell me," Zero murmured against his neck, "tell me how you want me to use them…"
The way Zero sounded, how his lips brushed against X's neck, made the blue Reploid moan; he was utterly trapped by Zero's arms and wings, in his gaze and how his voice just rolled over him. It was hardly the place to engage in intimacy, yet X was hardly caring if Zero just kept talking like that…
Danger, danger…
X's fingers gripped Zero's breastplate, giving a low, rumbling whine in response. Zero knew all of his secrets, knew what he wanted, knew X loved it when Zero would lightly bite him during lovemaking.
"Sweet X," Zero uttered before his own fascination and desire consumed him, and when his fangs pierced through suit and skin and synthetic blood filled his mouth, Zero's eyes widened, his pupils shrinking.
X screamed, but the sound tampered off into a string of moans, his body leaning against Zero's as the blond retracted the teeth and lightly sucked on the puncture wounds. The bite itself hurt like hell, but the way Zero's lips caressed him, how his tongue swirled his wound brought a strange trickle of sensation, of foreign pleasure that made X weak in the knees. The light suction Zero did, how his blood was drawn out of him slowly, made X sigh and feel light headed.
When the wounds stopped bleeding, Zero removed his mouth. He cradled X close as he swallowed the blood he took, licking his lips and running his tongue along his teeth to scrape up any remaining fluid. He had made X bleed a little before during their rougher times, and he enjoyed the coppery tang of a few drops here and there, but he never had a full mouthful of it. He wasn't sure it was the armor messing with his head or he was a freak, but Zero rather liked the taste…
"Shit," X gasped, his head falling onto Zero's shoulder with a loud clank. He was breathing hard, his entire body tense. "Shit, that was…"
"Too much?" Zero carefully ran his talons along X's helmet in a soothing manner. "Don't like it? Just tell me."
"It was weird," X admitted, regaining his breath. "I… I kind of didn't like it, but I kind of did… like I should do it again…" his eyes peeked upwards, almost coyly into Zero's widened blue orbs, "…just to make sure."
"You tease," Zero smirked. He flexed his wings out again, and X wrapped his arms around him with a giggle.
"Well, to answer your question… I think I'm up for a little experimenting."