⚠️WARNING⚠️

Baaasssiccallyyyyy...

This whole chapter is a lemon :3
Full sin
My first EVER!

SO PLS PLS PLS PLS NO HATE :'D

BTW ITS SOOOOOOO BAD :'3

❤️💜MMMMMMMM 9k💜❤️

---Nightmare's POV----

Cross nodded weakly, his eyes going half-lidded as he looked up at me. I could feel his soul beating rapidly in his chest, going crazy from how close we currently were.

I smirked, letting out a soft chuckle. "That's it sweetheart~"

He blushed more, his face steadily getting a darker shade of purple as his expression turned lustful.

The finger covering his mouth slowly moved to his cheek, caressing it lightly as I lent in to kiss him.

He jolted in surprise at first, but slowly melted into it, kissing back and pressing closer to me, his arms slowly moving up to wrap around the back of my neck.

I smirked into the kiss, deciding to see if I could take it any further. I licked my tongue over his teeth, asking for entrance. Cross' face managed to darken in colour, his flustered levels raising to higher than ever before. But he still hesitantly opened his mouth none the less.

I immediately slipped my tongue in, pressing it against his. Our small kiss rapidly turned into a heated make out session, the two of us gripping each other tightly throughout it.

By the time I pulled back, we were both panting, our faces flushed with dark blush.

Cross was shivering, his eyes were half-lidded, but were somehow looking at me in an almost innocent way. He looked so dazed just from that one kiss.

"You're so cute~" I cooed, smirking as I kissed his burning cheek, then his jaw, making my way down to his neck.

He let out a muffled squeak, shivering profusely as I started to kiss his neck. I slowly slid my tentacles down his body, smirking as they wrapped around his wrists tightly.

Cross jolted, letting out a yelp of surprise as they suddenly pinned his hands to the wall, above his head.

I chuckled against his neck as he squirmed, going from kissing his neck softly to running my tongue across it slowly, licking the clear white bone, covering it in my dark saliva.

Cross' eyes widened and he squirmed more, trying to cover his mouth with a hand or something. I didn't let him, resulting in him biting onto his own tongue desperately as I licked over a particular spot. His breath hitched and he sort of went limp against me, as if he knew there was no point in struggling any more.

I pulled my tongue back, instead starting to nibble softly on his neck, making him let out a soft whimper of pleasure, the method of biting his tongue clearly not helping.

I bit down suddenly on that spot, sucking on it.

Before Cross could stop himself, a moan of surprise escaped him, making both of us blush darker.

I smirked, pressing against him as I began to bite at his neck mercilessly, making a mark as Cross let out loud, helpless moans, his fingers clawing desperately at the wall behind him as my tentacles kept them firmly pinned.

A dark purple mark was left when I pulled back. It clearly stated one thing. He is mine.

I smirked, pulling back to look at his flushed face, loving the longing expression on his face.

"You're mine now~" I purred.

Cross nodded, dazed.

My two other tentacles curled around his body, rubbing against his ribs, one curling around his spine.

"H-haa~ N-Nightmare~ what a-are you doing?" He panted, closing his eyes and arching his body as the tentacle round his spine squeezed, making him moan softly.

"Nothing you won't enjoy Crossy~" I murmured, watching him closely as I moved my hands to his chest as well.

Cross squeaked in protest, struggling momentarily before going limp, his body twitching in pleasure as my hands and tentacles rubbed around and around his ribs, pressing against the sensitive ones and curling around the others.

As this went on, I picked him up, taking him off of the wall. I released his hands, resulting in one gripping into me while the other covered his mouth muffling his moans and soft cries of pleasure.

I carried him to my bed, pinning him down.

Cross looked up at me, his dazed and lustful expression making me want to do nothing more than claim him completely, make sure that no one else could take him.

God I sound like some yandere.

"N-Nighty?" Cross called. "Wh-Why'd you stop?"

I shook my head, re-focusing my vision before smirking down at him. "Want me to continue huh~?"

Cross nodded hesitantly, squirming in embarrassment as my tentacles suddenly slipped off his shorts, leaving him completely exposed.

I looked up and down his small scarred body, my eyes scanning over all the marks and chips.

Cross squeaked, trying to cover himself up.

I didn't let him, pinning his arms above his head, my tentacles keeping them in place whilst keeping his legs down as I straddled him, smirking.

"Form something for me Crossy~" I purred as I ran my hands along his spine and pelvis, my fingers curling round the sensitive bones, rubbing them teasingly.

Cross shivered, closing his eyes and looking to the side as he let his magic build up to form the lower half of a female body.

"Very good~" I cooed, only now starting to take off my own clothes. I stripped off my coat and shirt, pretending not to notice how Cross was staring at me, the almost permanent blush on his face darkening more than should be considered possible.

I tugged off my shorts, my male body already formed.

Cross looked away quickly, his body shivering in anticipation as I lined up, pressing my tip into his entrance.

I reached forwards, stroking his cheek softly as he squirmed. "You good?"

He nodded immediately, squirming more. "J-Just stop t-teasing me~!"

I smirked suddenly, leaning down so that I was breathing softly against his neck. "If you wish~"

I pushed some of myself into him suddenly, making him gasp and cry out, a drawn out moan escaping him. "Sh-Shit Nightmare~!"

"Shh~" I whispered, smirking widely as I pushed in more.

Once I was fully in I waited, looking down at him as he breathed in and out shakily, trying to adjust to the new feeling.

After around I minuet I shifted my hips, wanting nothing more than to wreck him right here and now.

Cross let out a gasp of surprise, his fingers digging into the sheets below him. "A-Aah~! W-wAIT~!"

I didn't, smirking as I started to thrust slowly, nuzzling him at the same time. "Hush now Crossy~ We don't want anyone hearing you now, do we~?"

Cross opened his mouth to answer but cut himself with a loud moan as I started to speed up, his body starting to shake.

He squirmed and strained against my tentacles as I sped up, his loud moans only escalating in volume, no matter how hard he tried to keep them in.

"H-Haa~! T-ToO much~!" He cried as he clawed at the sheets, releasing suddenly.

"Aww~ but we've barely even started~" I smirked, pulling out till just my tip was out before slamming right back in, hitting his sweet spot dead on.

"HAaaaAAH~! N-NightmAre~! Right there~!" He cried, his back arching right off the bed.

I nodded, starting to slam in and out of him, my tentacles releasing his hands so that he could cover his mouth, muffing his cries and shrieks of pleasure.

Cross squirmed, writhing in pleasure as I continued slamming into him, a knot begging to build up in both of us.

"HHNNG~!" Cross let out a muffled cry of pleasure through his hand as he suddenly jolted, hitting his limit again and climaxing.

I panted, reaching mine soon after, filling him up with my release.

Cross moaned softly, his hand falling from his mouth as he went limp beneath me.

I chuckled softly, pulling out of him and flopping down next to him.

He instantly clung to me, shaking. I nuzzled him, pulling him into my chest and hugging him tightly, my tentacles pulling the blanket over both of us before wrapping around Cross as well to warm him up.

"Did you enjoy that~?" I murmured as I stroked his cheek.

He barely managed to nod, his mind swimming and making him dizzy.

I chuckled again, kissing his cheek. "I love you Crossy~"

Cross looked up at me, smiling weakly. "I-I love you too Nighty."

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AAAHHHHHHH MY FIRST EVER SIN ARE YOU PROUD?!?!!!?

WAS IT ANY GOOD?

NAKKSOWKWMELWLEKKWSMZLZLSLSLSLSLLSLWLW

NO HATE PLEASEEEEEEEEE

HELP ME IM DYING

MYGODTHATWASSOBAD--

-Jess-