Because I wanted to write sin but I thought it would be weird for Nightmare to wreck a half zombie--

👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌

So if you didn't get my waning already-–

⚠️SIIIIINNNNNN⚠️

❤️💜10K MMMMMM💜❤️

Nightmare hummed, walking through the corridors of the mansion.

It had now been a whole year since the apocalypse started, and a few months since him and Cross came back to the mansion.

Once Cross had got better in that hospital, they made the long journey back to the mansion.

Of course at first there had been an uproar from Killer, Error, Horror and Dust. They hadn't obviously expected them to ever come back, especially Cross.

It took a lot of questioning and days of unsureness, including them forcing Cross to sleep in the basement for three days and nights to prove he was completely cured and wouldn't attack anyone suddenly before they finally accepted him back in the mansion.

They all soon grew quite fond of him, and soon enough even Dust was taking him normally, apologising for all the times he'd tried to kill him.

Cross, being the innocent little cinnamon roll that he is, forgave all of them, saying he would have been the same if it was one of them that had been bitten.

The others constantly teased Cross and Nightmare about their relationship, but they ignored them, saying that they were just jealous.

But speaking of the others, they weren't here at the moment. Dust had gone out hunting in the forest while Killer, Horror and Error went searching in a nearby city for supplies seeing as our food was running slightly low.

So Cross and Nightmare had the whole mansion to themselves.

Nightmare smirked, walking up the stairs and down the corridor to what used to be his room, but is now their shared room.

Knocking softly, he hummed, pushing open the door and walking in. As soon as he did that however, he stopped, blinking.

Cross was sat on their bed, his back to him. But he only had a towel wrapped around his small frame. He must have just gotten out of the shower or something.

Nightmare froze, feeling his face heat up rapidly, his eye subconsciously scanning over every inch of the smol's body. "Cross?"

He squeaked, whipping around and clutching the towel to his chest, his face immediately flushing deeply as well. "N-Nighty?! Wh-What are you doing her?!"

Nightmare blinked rapidly, trying to shove the dirty thoughts out of his mind. "Well, this is our room."

"You should have knocked!"

"I did."

Cross looked up at him, blushing darker as he started walking over. "W-Well-- You need to get out while I ch-change!"

"Aww~ Why would I want to do that~?" He purred, stopping in front of him by the bed. "After all, I'm sure you're even cuter without any clothes on~"

He let out a flustered squeak, freezing up momentarily. "Wh-What?!"

"You heard me~" Nightmare whispered, sitting down on the bed before pulling him onto his lap.

He yelped, squirming weakly in his grip as he held him close, smirking. "N-Nighty what are you doing?!"

"Nothing~" He whispered, chuckling softly as he pulled him into a kiss.

He let out another squeak, but didn't resist, kissing back immediately as his arms let go of the towel around him and wrapped themselves around the back of his lover's neck.

Nightmare smirked happily, pulling him closer as he gently pressed his tongue against the smaller's teeth, asking for entrance.

Cross shifted on his lap, closing his eyes and opening his mouth, letting Nightmare do what he wanted with him.

Nightmare hummed, slipping his tongue into Cross' mouth quickly, letting it curl around the smaller's.

The smol moaned softly, pressing against him as he pressed his tongue back against Nightmare's weakly. He submitted quickly.

Nightmare smirked into the kiss, dominating it easily as his hands slowly traced down Cross' spine, tugging at the towel around his wait.

Cross let out a feeble moan into the kiss, one of his arms moving away from his lover's neck to keep the towel securely in place as he shook his head slightly.

Nightmare growled softly, pulling back from the kiss as he glared down at his already dazed lover. "Don't deny me what I want, Crossy."

Cross panted softly, gasping weakly as Nightmare leant down, trailing his tongue across his unmarked neck. "N-Nighty...~"

The taller chuckled, pausing at a particular spot as Cross' breath hitched. Humming, he bit down at that spot harshly, digging his teeth into the smol's neck.

"HaaANG~! N-Nightmare~!" Cross cried out, tipping his head back so that he could have more access.

Nightmare smirked widely, sucking on the bone as his hands tugged at the towel around Cross' body once again. This time it came off, Cross being to dazed and uncoordinated to stop him. "Good boy~"

Cross looked up at him with half lidded eyes as he pulled back, gulping.

Nightmare hummed, shifting him off of his lap and slowly pinning him down to the bed, his tentacles curling around the smaller's spine slightly.

Cross moaned needly, squirming beneath him as the tentacle on his spine squeezed it softly, making him cry out weakly in pleasure.

"Oh you're so cute like this~" Nightmare cooed, looking down at him lovingly as his fingers brushed over his ribs. "I could just eat you all up~"

"Please do~" Cross mumbled, reaching up to tug at Nightmare's hoodie weakly.

Nightmare laughed softly before pulling him into another passionate kiss, his tentacles quickly succeeding in pinning the smaller's arms above his head.

He moaned as Nightmare shoved his freakishly long tongue into his mouth, immediately pressing his tongue weakly up against the others, shivering profusely.

As they made out, Nightmare quickly tugged off his own hoodie and top, smirking.

He pulled back, chuckling as he saw that Cross had already formed his lower female body, the small foreplay being enough to turn him on fully. "Oh look at you~ So needy~"

Cross panted, squirming weakly as Nightmare traced a finger down his sternum, gently running it down his tummy to his thighs, where it rubbed soft circle right by his already dripping entrance.

Nightmare chuckled softly, pressing that finger in between his folds before rubbing it back and forth over his clit.

Cross gasped loudly, throwing his head back as he moaned softly, gripping onto the sheets.

"So cute~" Nightmare whispered before pushing that finger into Cross' entrance, giving the smol no warning.

"HaaAAng~! N-Nightmare~!" He moaned loudly, jolting as Nightmare shoved in another two fingers, not even considering to let him adjust.

Soon enough he was reduced to a moaning mess, crying out and drooling as Nightmare roughly fingered him. Every time he thrusted them his fingers would brush against a spot, driving Cross crazy with lust.

"M-More~! P-PleASe~!" He gasped, jolting as Nightmare's fingers roughly jabbed against his sweet spot, making him cum instantly as he cried out in bliss.

Nightmare chuckled, ignoring Cross' whined protests as he pulled his now sticky fingers out of his entrance, immediately licking off the release.

Cross panted, looking up at him needly. "D-Don't stop...~"

"Aww~ You want more~?" Nightmare teased, looking him up and down as he nodded quickly. "Have you been a good boy~?"

"I-I have been...~" Cross whispered, moaning weakly as Nightmare's tentacles started rubbing his spine and ribs again.

"Do you need a reward~?" He whispered, tugging off his own shorts to reveal his already formed male body.

"Y-Yes~" Cross responded, straining weakly against the tentacles as he looked down at his lover's monstrously large size. He faltered slightly, blinking rapidly.

Nightmare noticed, smirking as he crawled in top of him and rubbed his tip against the smol's entrance. "Too much for you~?"

"I-I...no?" He gulped nervously, shifting his hips slightly.

Nightmare laughed softly, nuzzling his neck before suddenly slamming his whole length into him without warning.

"HAAAANNGH~! N-NIGHTY~!!" Cross jolted massively, arching his back right off of the bed and gripping the bedsheets. His fingers dug in tightly and he released immediately.

Nightmare groaned softly at the feeling, shifting his hips.

"H-HaA~! W-Wait~!" Cross gasped, desperately clawing at the sheets beneath him as his smol body tried to adjust to his lover's size.

"Nah~" Nightmare chuckled, starting to thrust as he bit and licked at Cross' neck, grunting and huffing in pleasure.

Cross let out a loud moan, bucking his hips and squirming at the indescribable feeling his was experiencing.

And then Nightmare hit a spot that made him shriek in pure pleasure, his eyes immediately rolling to the back of his skull as Nightmare slammed into his sweet spot, making him release again.

Nightmare grinned widely, immediately targeting that spot and ramming in twice as fast, absolutely loving Cross' reaction.

Cross screamed in pleasure, his tongue lolling out of his mouth as Nightmare continued to ram into him, panting softly.

His tentacles curled round his spine, pressing and squeezing at it. They curled round his ribs, covering them in a semi-transparent goo.

Cross came again, unable to hold himself together as he endured wave after wave of mind numbing pleasure, his chin caked with his own drool.

"T-TOO MUCH~!" He cried, gasping for breath as he came for a forth time. "A-AAH~!"

Fortunately for him, Nightmare grunted, letting out a low moan as he reached his limit and released inside of Cross, filling him with his climax.

Cross moaned loudly before going limp, gulping and gasping down air. "O-Oh Nighty~!"

Nightmare panted softly, catching his breath back before pulling out of Cross and flopping down beside him. "Y-You enjoy that~?"

He nodded weakly, shivering massively as he looked up at his lover, eyes half-lidded. "V-Very much~"

Nightmare chuckled, pulling him to his chest before tugging the warm blankets over the two of them. "Maybe we should do it more often~"

He nodded, putting weakly as he snuggled closer. "Y-Yeah...~"

Nightmare smirked, kissing his cheek softly. "Now sleep Crossy~"

And they both did just that.

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*insert Lenny face here*