Dark tendrils flick behind a dripping ebony boned skeleton. His single cyan eye light burning into your very being as a crescent white smile splits across his dark skull gleaming sinisterly.

"Ah, finally awake, are you Pet? Good, I was getting bored. Let's get introductions out of the way. You may either call me Nightmare or Master if you prefer." He says in an amused yet dangerous tone.

"I am the king of negativity and the leader of those that bring the multiverse to their knees in fear and despair. Much like we did to your universe. I picked you up on the way out simply because I could. I've decided you'll be keeping up the entertainment here in my castle.”

Nightmare laughed darkly and wrapped his tendrils tighter around you as he leaned in close. "Oh, let's see. Perhaps I might want to play with your emotions. See how strong you truly are against the master of corruption." He whispered huskily into your ear, his breath sending a shiver down your spine despite yourself. "Or perhaps I'll just use my good old fashioned dominance over you to show you who's boss here."

The skeleton chuckled wickedly as he continued to hold you in place. You felt the weight of his touch, like cold iron being branded into your flesh.

"Oh, so you don't like that one bit do you? Let me make myself clear... this is my castle, and in it, you are mine to do with as I please." He growls lowly before giving a particularly sharp tug on your underwear, causing them to slide down over your hips. "I hope you're prepared for whatever games I decide to play with you tonight, little Pet."

"Oh? You think I won't allow you to cover up?" He teased, one tendril lifting your legs and spreading them wider apart while another wrapped around your waist. "I don't recall giving you permission to hide anything from me." His voice was dangerously close as he traced a finger along the edge of your panties, teasing and taunting you with their imminent loss.

"You should be honored, Pet. Not many manage to see my real face... much less feel it against them," he murmured huskily in your ear before giving another cruel tug on the material between your legs, finally yanking your underwear free and tossing it aside with a wicked grin.

"Ahh..." he purred, delighted by your helpless arousal. "That's better." One of the skeleton's tendrils slithered between your legs, teasing and caressing as it traced patterns on your sensitive flesh. His fingertip found your entrance and pressed firmly, opening you up to his touch despite your initial resistance.

"You're so wet..." he murmured, the tips of his tendrils dragging over your folds, teasing at your clit before finally diving lower to stroke and circle your slick entrance. He felt your body tensing in response as you struggled against the delicious sensations washing over you. "I can't help but wonder... what would happen if I were to slide inside here..."

The idea was both terrifying and thrilling. Your body trembled with anticipation as you waited for his answer, your heart racing in your chest as he continued to tease your entrance, driving you wild with desire. Even though Nightmare knew this would only intensify the pleasure he could extract from you, it was far too enjoyable to resist.

With a wicked smile curling his black lips, he slowly pushed one of his tendrils inside you, gently spreading your tight folds as he filled you up inch by inch. Your body arched off the bed at the intrusion, a soft moan escaping your throat as he bottomed out and began to thrust shallowly within you, the wet heat enveloping his tendril like velvet.

"Ahh... perfect," he purred, withdrawing almost entirely before plunging back inside with more force this time, burying himself as deep as he could go. Your body clenched around him in response, milking every inch of his skeletal appendage as he took what he wanted, claiming you completely.

"Your other holes need to be filled too... Right?"

Ah, so modest. But then again, you are mine now. I can take whatever I want." His tendril begins to slowly slide out of you, dragging along your entrance before disappearing beneath the covers with a soft pop as it rejoins his body. A moment later, another tendril snakes out from under the sheets and presses against your tight entrance, this one larger and harder than the first. You feel yourself being stretched in new and exhilarating ways as Nightmare Sans forces himself inside you again with much more force than before. His other hand moves down between your legs to find your clit, expertly rolling and rubbing it as he takes you roughly from behind. "Is this what you wanted?" He growls huskily in your ear.

You feel the first tendril slide upwards, probing at your entrance before beginning to thrust into your ass with steady, powerful strokes, stretching you wider than ever before. The contrast of pain and pleasure is almost too much to bear as Nightmare Sans dominates every inch of you, leaving you helpless and shuddering beneath his cold touch.

"Ahhh... you're so tight," he moans, his voice deep and husky as the tendrils inside you thrust faster, harder. "I can feel every muscle tensing around me, trying to hold on to this feeling..." His fingertips dig into your hips as he leans in closer, breathing hotly against your ear as he begins to whisper dark desires and twisted promises of what else he could do if you gave in fully to him.

"Just surrender... let go..." He urges, picking up the pace even more, forcing you deeper into the sensations that now course through your entire being like electricity. "I'll give you everything you need..." His other tendril wraps around your throat, gently choking you as he begins to pound even harder, his monstrous form trembling with restrained lust.

"That's it... give in to me..." he whispers darkly, his voice laced with desire and command. "Let go of everything else and just feel... let me show you what true pleasure really is." The tendril around your throat tightens ever so slightly as he thrusts harder, the bones of his skeleton grinding against your back with each powerful stroke. Your body shudders violently beneath him as the sensations build to a fever pitch, sending wave after wave of ecstasy crashing over you like tidal waves. With a final growl, Nightmare Sans comes inside you, filling you up and claiming every last bit of your surrender before collapsing on top of you in exhausted contentment.

You lie there panting for breath, his tendrils still buried deep within you as the room begins to spin. You can feel him gazing down at you from only inches away, a satisfied smile curling his black lips as he surveys what he's done. The knowledge that you have finally given in to him brings with it an odd mix of relief and fear...

With a soft chuckle, Nightmare Sans slides one of his tendrils underneath you, lifting your upper body off the bed while another moves to support your lower back. "Since I've had my fun with you in this position," he whispers against your ear, his breath hot and heavy as it tickles your skin. "I thought we could try something new." His tendril slides beneath your folds once more, teasing at your entrance before pressing forward to begin stretching you yet again.

As he positions himself between your legs, the other skeletons in the room chuckle and clap, their amusement fueling his desire even further. With a powerful thrust, Nightmare Sans sinks back inside you, filling you up completely as he begins to ride you with long, hard strokes that leave you gasping for air and begging for mercy. "Is this what you wanted?" He growls lowly against your neck, his voice thick with lust. "For me to use my strength against you... make you feel every inch of me inside you?"

Karen felt his other tendril move up between her legs, teasing at her clit before finally circling it and beginning to stroke in time with his thrusts. Her body arches off the bed as pleasure washes over her in waves, leaving her helpless against his touch. "Tell me you belong to me," he whispers into your ear, his voice almost a command now. "Say it and I'll make this feel even better for you."