She began to take off the shirt and pj bottoms she wore, leaving her underwear behind. She slowly let one of her hands go into his slacks, rubbing his legs while the other teased her own her breast as he watched. He shuddered at the display, that was hot... a groan of pleasure slipped from him. This egged Frisk on as she licked her hands and continued to play with her breast with the one hand and the other hand reaching for his magic, rubbing it gently. She moaned from her own hands; he arched beneath her touch, a groan pulled from him, his tongue slid along his teeth as he watched her; shivering from the contact.
"Oh god, Sans..." She let her head go back as she continued to rub her breast, even lifting It up so she could bite her nipple and licking it while looking down at Sans face, continuing to rub his magic. His magic pulsed warmly beneath her touch, his tongue lolling out a bit as his magic flared to life in his eye, four hands appearing, two of them grabbed Frisk's bottom; the other two floated over to him and skimmed along his sensitive bones. He quivered, groaning at the added stimulation. Frisk became jealous of the pleasure the hands were giving Sans, and she immediately came closer and started to lick his ribs.
"I get to pleasure you..." She said lustfully. He wasn't sure at that moment, and probably never would be afterward, if she was possessive or if it was just the heat of the moment.
"ah! Frisk..." A shudder of pleasure ran through him. She nibbled and licked his bones and gently put her hand under his rib cage and gilded her finger over his soul. He jolted the moment her finger skimmed his soul, A groan coming from him from the simple touch, every part of him felt it, and it was like every nerve was ablaze; his soul brightened with the contact, giving off a soft heat.
She loved this she wanted all his pleasures to be hers alone. She began to stick her tongue into his mouth while allowing her hands to explore his ribs. He shuddered, his body was keenly attuned to her, and his soul was pulsating in a way. Like it had a mind of its own as if tempting her with its brightness like a jewel that sparkled in the light. His eye lights were hazy with the pleasure she gave him.
She leaned back observing the soul and smiled. She licked her finger and gently rubbed his soul with angel-like touche. She didn't want to hurt him. The soul seemed to brighten, after a moment gaining a soft sheen across its surface, giving it a sort of soft, slick feel even as its owner was lost to the pure pleasure the touch had brought; chest heaving a little as if he needed the air from the intensity of the desire.
She leaned in and tried to bring the soul as close as she could to her tongue, as she allowed, to glide over it. Frisk was just feeling the small side effects as she began to tremble against him. The soul easily phased through the bone as she'd coaxed it out, Sans could barely focus the moment her tongue glided over his soul, lost to the pleasure of the contact. Frisk smiled against the soul. This was hers now. She lovingly kissed it and licked it. She would never hurt it. Moans and gasps of pleasure tumbled from him, the soul glowing like a little star from her attention to it; Sans shuddered, a cry leaving him as the release hit hard and fast.
"Guess I won didn't I." She glanced at his soul before allowing it to go back gently. It took him a moment to collect himself enough for any sort of thought.
"d-damn... for someone who claimed to know nothing about how we work... you have some skills."
"Aren't you glad you marked me then?" She said lustfully before cuddling up to him.
"more than." If she thought she was off the hook though, she had another thing coming... because he'd gently coaxed her soul out and slid a finger along one curve. Her body naturally fell back on the bed, and her hands rubbed her breast as ecstasy shot through her.
"Oh god, Sans.." His finger gently traced around the entire soul. It was like he was touching her all over at once her body trembling, her nipples erect, and her breathing started to speed up. He shifted to lick a stripe up the middle of her soul, slowly. Frisk clawed at her own body as her innards screamed in pleasure. She began moaning. "Sans... Sans." She could hear herself breathing in quick shallow breaths. Her body naturally arching as she longed for this sensation. He watched her as his tongue gently wrapped around her soul. Her eyes rolled to the back of her head. The pleasure was overwhelming as her body heated up and her lower half quivered in pleasures it has never known.

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Colors Of The Soul
FanfictionJust when things are finally starting off, Sans and Frisk realize their troubles with Chara are far from over... Sentinaltale, Aria & Inky belong to @aguardianofdreams on deviantart Lemons Warnings Second story First story is How To Mend A Soul ple...