New toy { Underfell sans x reader (smut) }

Angelic Sins

TRIGGER WARNING / CONTENT WARNING⚠️
Force, graphic content

He continued just as if nothing could stop him. sliding his hand into your panties, his finger glides against your inner flesh, already wet with lust. You let out one final gasp before he shifted his other hand from your throat to your mouth, covering it completely. You close your eyes tightly, and shake your head, repeating the word "No", but the sound is muffled by the firm grip of his hand against your mouth. "I know ya' like this Y/n..." He laughed, repeating the same movement with his fingers, earning another back arching, shivering moan of pure ecstasy to muffle through his palm. He was right about you liking this, but you still resisted, as if you had any say in what he was doing to your mind.

To him, this was just all a game. And he was just itching to see how far he needs to go to force you into submission.  "Admit it. You like this. You love it, don't you?" You both knew if he went any farther, you'd be broken. With this being painfully obvious, he shifted his index and middle finger slightly up, ever so softly circling your nub, his rhythm pausing as he slid it between his fingers every now and then.

You tilted your head back, finally accepting his force. You uncontrollably nodded your head as his grip on your mouth loosened allowing you to speak. "Y-yes! Yes!" He smiled as he looked down at you, planting a kiss on your forehead. "Good girl." Suddenly, you felt something warm and stiff press against the small of your back. Before you can react, your body is slammed against the cold surface of the mirror. Picking up from before, he begins to stimulate your entrance once again, but with roughness. Leaning his face close to yours, he growls quietly to himself.

"Don't make a fuckin' sound doll face." He whispered, introducing his middle finger to the entrance of your hole. Slowly, he pushes it in, causing your legs to strain and shake. This was a brand new feeling, something new, something much more different from what he was doing before.

Next, he squeezed his other finger into your already crammed hole, his rings causing your entrance to ache sharply as he continued to force it all in. Before any noise could escape your lips, he slid his fingers into your mouth, grazing the jagged edges of your molars.

He takes a slow rhythm, almost as if he's just admiring the warmth and feel of your insides in his hand, soon speeding up as his hips begin to grind crudely against you. The bumpy feeling of the rings on his fingers felt otherworldly as he pumped them in and out of your little hole.

You wanted to scream and moan more than anything, but you knew his orders.

In between breathes you can slightly hear low growls and huffs of pleasure quietly escape his mouth. It felt amazing to hear he was getting so much pleasure from using your body. As your pleasure also builds, saliva begins to fall and drip off your lips. You glance into the mirror that your body is squished against, making eye contact with your own lust-filled eyes in the foggy reflection.

You're a mess, you never looked so broken, but this, this was bliss, you felt so close to an edge that you've never once known about. Is this it? I think I'm at my limit! "I c-can't... ah..! I can't go any further!" He growls in response "Well I...can." He speeds up slightly, which is all your body needs to crumble into a shaking climax at the pit of your stomach.

Your climax doesn't stop him, it didn't even slow his pace in the slightest. What? He's not going to stop?  He continues to move his fingers in and out of your insides, the pain beginning to return to your senses. "Ah! No! I can't go anymore..! hah.!" You whispered, trying your hardest to stay quiet. "Stop—mngh!!" Mid-sentence, he curled his fingers from inside you. His knuckles roughly dragging themselves against your inner walls. This felt like you were being stretched apart and torn at the seams.

The difference between pain and pleasure was no longer apparent. You couldn't tell if you liked it, or if this was just your body subconsciously accepting that there was no escaping him.

Something was building up, but what? This new feeling was far bigger than your last, it felt... burning hot, and freezing cold at the same time. Not even your thoughts could process this feeling. This was something beyond orgasm, it was a whole new feeling of pleasure in itself. The building inside you continued, it felt stronger, so strong, you can now tell was building up from deep inside your stomach.

The warm wetness of his shaft grinding on the small of your back during all this served as a constant reminder of his torture. He knows you want it inside you, but he won't allow you to have the honour.

Like a gunshot, your body exploded in an intense, earth-shattering orgasm, all in the palm of his hand. Warm fluid dripped down your legs, but you had not a care in the world. Your body fell completely limp in his arms from the violent overstimulation he put you through.

The two of you breathed in unison, almost as if you were now one. Before anything could be said, an insistent knock resounded on the door, shattering the silence. "Only 1 at a time in the fitting rooms!"  The jarring sound made your heart lurch. Could they have heard us? Despite the unease, Sans couldn't help but burst into laughter before offering an unconcerned response "Oh, we just finished." As the sound of the footsteps faded, he let you down slowly. Your limp body fell softly onto the cold floor, right next to the mess the two of you had left on the ground. Stepping out of the changing room, he stares at the graphic scene he left you in.

"Hurry up and get dressed."