"Huh...? Where am I...?"

Muffet looked around. She was sitting in a wooden chair, her legs bound to it and all six of her arms tied up behind her. She seemed to be in a cellar of some sort... "Hello? Grillby? Sans?" She called for her friend and the last person she remembered seeing before she blacked out. She remembered feeling a sharp pain in her neck, like something was stabbing her, before feeling dizzy and passing out in the Snowdin alleyway last night. Her nervousness overtook her personality, and she felt like a child who had lost their mom in a large store full of strangers, except this time, instead of strangers, there was no one. No living soul around. She fidgeted her hands, trying to undo the ropes binding them together. She heard the door click, and she quickly looked up, seeing two monsters step into the dark basement as the lightbulb above her head swayed and jingled, the only source of light in this small, square room that was almost completely swallowed by shadows.

"Hey there, Muffet~"

"Muffet! Oh my god!!"

The spider's eyes widened. "Grillby!! Oh thank god it's you.. how the fuck did I end up down here?!" she asked frantically. The fire monster shook his head. "I don't know! Sans, why did you bring me here?! Did you do this?!" he said, turning his head to look at the small skeleton in shock. He smirked. "Yep. You can thank Alphy for hooking me up with that tranquilizer." His victim's eyes burned with rage. "Why would you do this to me?! I trusted you!! Once I get out of here I'm going to the police!!!" she shouted. Sans turned and locked the door with a key, then stuffed it in his pocket. The door and walls were all completely soundproof — nobody from the outside world could hear Muffet's outburst, not even Sans' younger brother, Papyrus, who was sleeping on the couch upstairs. Screaming was futile and struggling was a waste of time.

"Ohoho, they're not going to find you." Sans remarked with an evil smirk.

Grillby struggled with the doorknob,trying his hardest to open it despite knowing that it wouldn't work. It wouldn't budge, just like he knew it wouldn't. He tried to run over to the kidnapped spider monster, intending to help untie her and escape with her in some way, but a "ping" noise surprised him as he was pulled back towards Sans. His legs toppled under him and he landed in the small skeleton's arms, which wrapped around his chest in a gentle, loving embrace. Despite the comforting feeling of the hug, who it was coming from scared the fire elemental, and he struggled to escape Sans' grasp. Sans just chuckled and hugged him tighter. "Come on, sweetie, don't struggle. I'm not going to let you go. You do love me, don't you?"

Grillby struggled once more. No luck. "You kidnapped my best friend and locked us all down here!!" "I did this all for you, dear! Why won't you accept my love? We can be so happy!" "I don't love you!! Let me go!!" The fire monster shouted. Sans dropped him, and he hit his head on the floor hard. He tried to sit up, but the world was spinning like a carnival ride on overdrive. He toppled back down again, breathing heavily and shutting his eyes, covering his face.

[A/N: this is starting to sound like a hentai what the fuck]

Sans chuckled. "That's what happens when you don't respect your lover. People get hurt. Now let me ask you again. Do you love me, Grillby?" Grillby noticed that Sans was holding something behind his back. "No, no, I don't, and I never will... after everything you've done... ugh, my head..." Sans looked upset, and then angry. He turned to Muffet, pulling the knife out from behind his back. "It's her fault, isn't it, Grillby? You're too distracted by this little pest to realize your real feelings." He sharpened the knife on the wall with an insane grin. "Hahahahaha! I can fix that!!~"

"Muffet, no!!!"

Helpless, terrified and dizzy, Grillby watched Sans plunge the knife into Muffet's neck. The metallic crimson blood flew everywhere, splattering onto Sans' clothing, Muffet's clothing, and the concrete floor and walls of the cold, dark basement as the spider's agonizing screams and last desperate cries for help were drowned out by the skeleton's maniacal laughter. The spider woman's screams and strained, begging cries and pleas for someone to save her, save her from this insane man who had trapped and hurt her and was going to kidnap her best friend too, slowly faded away as the life drained from her eyes. "I never got to tell... you..." were the spider's final words to Grillby as a white soul appeared in front of her chest. Sans took it in his hand and scrunched his fist around it as hard as he could, and with the ear-piercing shattering sound of the soul and the last desperate screech for someone to save her life from this cold, heartless monster, Muffet let go of her last strings of life and plummeted into a dark pit of death, only waiting now to meet the Grim Reaper and have her sins judged once and for all before she moved on to her miserable afterlife. Muffet, Grillby's best friend for years and someone who he had trusted for the longest time, was dead, and there was nothing he could do to save her.

Sans, having gotten a kick out of murdering his rival, turned his head back to the horrified, traumatized fire monster sitting on the floor. The blood of the spider woman stained his face, clothes and weapon as he smiled cheerfully and Muffet's body disintegrated into silvery dust before him. "Wasn't that amazing, dearie? I ended a life for you. Do you see how far I'm willing to go for your love? Why won't you accept me when you've seen all of the things I'm willing to do for you, sweetie?! You're driving me mad! Please, just say that you love me. It will make my life. And... hehe..." Sans smiled sinisterly as he turned his full body towards Grillby, walking over to him and putting the bloody knife to his chin, the tip of the blade touching his senpai's neck. The skeleton finished his sentence with: "...it will save yours."

"I... I..."

Grillby stammered, his head spinning. What would he say?! He didn't want to die!! Not like this! Never like this! Unable to think clearly, he shakily responded with:

"I love you.. Sans."

The knife dropped to the floor with a clatter as the yandere skeleton ecstatically hugged his new boyfriend. "I knew you loved me, Grillbz! Now nothing will get in our way! Nobody will hurt either of us, or dare to stand up to our love!" As Sans happily rambled about everything he and Grillby would do together, Grillby caved in and slowly wrapped his fragile, shaking arms around the skeleton who was holding him up from collapsing on his back onto the floor again. He couldn't escape from this monster now. He couldn't call the police. He couldn't call for help. He couldn't tell anyone about what Sans had done here tonight, about what happened to Muffet or about his new boyfriend's true nature.

And if he ever tried to, he would die a bloody, painful death, just like Muffet had suffered right in front of his eyes just minutes before. In the wake of his friend's death, Grillby had ruined his own life, and now there was nothing he could do to take back the lie that he had spoken. If only he had said it a little sooner... maybe Muffet would have lived to call for help, and save both herself and the fire elemental from the monster that he now called his lover.