Pulling My Heartstrings (Undertale Au Smut)

Nightmare x Reader x Error

I was stuck in my room for the week because I was nearly hurt in a battle the rest of the team was in, and I was getting really bored... I laid down on my bed, thinking about my partners for a bit before gently touching myself through my pants.

"Yn, What are you doing?" I jumped a little at the noise, seeing my partners Nightmare and Error at the entrance of the room.

I sat up and rubbed the back of my neck, a blush covering my face.

Nightmare walked over, pulling my pants down and off of me, looking up at me before licking my clit slowly, causing me to gasp and shudder.
He held my hips and licked my clit for a bit before licking down and starting to eat me out.
I moaned and grabbed the back of his skull, shuddering as I felt pleasure build in me.

He kept eating me out, and when I got close he pulled away and wiped his mouth. I whined softly and he looked up at me, chuckling.

Error walked over and moved Nightmare a bit, licking and sucking on my clit gently, causing me to cry out and shudder, cumming against his tongues and panting softly.

"Oh come now Error, isn't it more fun to get her close and wait? Makes it more rewarding" Nightmare chuckled, and Error grinned as he pulled away,

"You do have a point.." Error moved away and Nightmare pulled me into his lap, holding my hips and gently rubbing my clit with his thumb, making me shudder and whine softly.

I blushed as I looked up at him, feeling him rub my clit with one hand while the other slid down and pressed against my cunt, sliding two fingers inside and curling them to hit a sweet spot, making me moan softly.

He kept this up for a few minutes before moving the hand that was on my clit down, pressing the fingers into me next to the other two. I gasped and moaned loudly, shaking a little.

Nightmare kissed me and pumped his fingers inside of me, the kiss muffling the noises I was making.

After a minute or so he pulled away and took his fingers out of me, causing me to whine.
Nightmare stood and laid me down on the bed, taking off his pants and stroking his member a few times.

I watched him, blushing deeply.

Error undressed as well, and Nightmare got on top of me, lifting my hips and pressing into me, causing me to whimper and gasp.

Error got onto the bed and straddled my face, gently rubbing his dick against my lips.
I opened my mouth and let him slide his dick into my mouth, shivering at the feeling.

Nightmare started thrusting slowly, moaning and grinning as he watched me suck Error off.
He picked up the pace, holding my hips and leaning down to suck and bite on my nipples, causing me to whimper and gasp around Error.

I held onto Error's hips, trying not to move too much as Nightmare thrusted into me.
After a few minutes of thrusting into me, Nightmare stopped and pulled out, letting Error switch with him.

Error slid his dick into me and started to thrust quickly, making me cry out and cling to him.
He leaned down and bit my neck, making me gasp and moan.

Nightmare was getting close, stroking himself as he watched us.

I started to feel a knot in my stomach, moaning as I was pushed closer and closer to the edge.
Nightmare groaned and came on my face, and I then came around Error, gasping and moaning loudly.

Error came inside of me, causing me to gasp and whimper, feeling overstimulated.

He pulled out of me and Nightmare picked me up, laying me down and holding me close.

I closed my eyes and leaned against him, still a little out of it.

Nightmare and Error held me and we eventually drifted off to sleep.