The next day was the same as the day afterward. It has been almost four days since they moved in and nearly three days since the heat came over. Frisk was beyond exhausted. Her body was barely holding on to a thread. On top of it, she hasn't been feeling the best as well. She glances over to Sans who was still asleep as she got up to make breakfast again. The whole experience of being in heat has definitely was an experience. Frisk decided today though she wanted to surprise Sans. Before making breakfast, she raided his clothes and found what she is looking for a wicked smile went on her face. She quickly went to work on getting breakfast ready and placed it on the table. Frisk yelled up at Sans to come downstairs to eat. While he would eat, she would get dressed. Frisk laughed at how great the idea was, and surely he would get a kick out of it too.

"Sans time to get up I made breakfast... I have to run a quick errand, and I will be right back." In all reality, she just was going to the restroom, but she didn't want him to walk in on her. She quickly ate her eggs and toast and left to the bathroom. He made his way down the stairs, He yawned a second time before wondering what it was she had to do, but it was fine with him. It seemed that the heat was finally fading; he could tell this would be the last day and he was grateful for that. Heats were hard on both partners in the long run. and i have these twice a year... at least this will be the last one for this year. He thought as he ate his breakfast. Frisk waited about 15 minutes before coming out of the bathroom wearing only Sans' lab coat and a simple belt. She also got some fake glasses and pinned her hair up as she entered the kitchen.

"You know I know someone would like Uranium in them." She said flirtatiously. He hadn't been expecting that and turned to look at her, dropping the ketchup bottle. Holy shit...

Frisk made her way over to Sans and straddle him. "Now mr. scientist.... What happens when two polar opposites meet and start rubbing together?"

"i'd like to find out." If he'd had a throat, he'd have probably swallowed a ton of air.

"We can run an experiment... To figure out the solution what do you think Sanssss." She dragged his name out lustfully. He flushed, sweet stars his mate was hot...

"good idea. i'm all for that." Frisk gently started to grind against her mate letting out little out little moans. She merely unbuttons the top button of her lab coat to reveal nothing underneath. A sharp intake of air he didn't need let her know what he thought before he began to nibble at her neck, his hand pressing her closer. The last coherent thought he had at the moment was that he was the luckiest monster on this planet... or any planet.

Frisk quickly unbutton the rest of the coat as she started to feel heated and allowed her hands to travel up his ribs. While enjoying him biting her neck, she moaned his name. His hands found her breasts as he trailed nips along her collar and throat. He was completely enthralled in her. She got off his lap and pulled at him to go to the bedroom where it will be a little more comfortable. Sans just lovingly followed like a puppy.

"This is going to be Sans-ational sex Sans..." she teased.

"don't need the shower to make steam."

The moment they got near their pretty torn up bed. Which after the heat they will need to replace. She immediately forced Sans down on her on the bed making her be on the bottom. He was a more than eager participant, lavishing her skin with kisses and gentle nips. She moaned against his bones and started to nibble his neck when she could reach it, and when he was out of reach, she rubbed her breasts in anticipation. He moved to tease one nipple with his tongue, one hand teasing the other; his free hand slipped between her legs to tease the warm folds.

Her head falling back as the sensation took over again and she moaned his name "Sansss that feels so good." Despite it being crazy the last couple days she knew now that he loved her and her alone. Her hands clawed at his backside as she continued to moan. He had done everything in the last few days to prove that she was the only one he wanted... he craved... the only one he would satisfy himself with, heat or not and he'd always made sure that any healing that was needed was done after each day. His fingers ventured further into her warmth, he loved hearing her pleasure, it drove him nuts, and there was a certain satisfaction that he couldn't really put to words that he got from hearing it.

She was trying to hold out as long as she could before she could feel herself needing him but the way he was touching her, it was almost too much.

"Sans I want you.... no need you." She said moaning his name. He shuddered with delight and slipped his fingers from her to replace them a few seconds later with his pulsing member, always careful not to hurt her even as he quivered with the need for her. She looked up at him and just wanted to remember every detail. As he began to enter her, she felt her body quiver, and her body arched back in pleasure.

"Mmm Sans Sans..." She egged him on loving the sensations that she was experiencing.

"oh, Frisk... you feel so wonderful..." He groaned, pushing in the last bit, a shiver going up his spine. Her womanhood clasping onto his magic as she felt waves take over in pleasure. He kissed her passionately as he began thrusting into her, angling to hit that spot he knew would make her scream out in ecstasy. She found herself getting quickly wrapped up in the sensation again as he suddenly found her spot. She screamed his name. As she tried to give him as much pleasure as she could possibly give him.

"Sans..." She screamed. As she touched her breasts and her vision fogged over with ecstasy. He let out a groan that was mixed with a purr of deep satisfaction as he slammed into that spot, He loved the way she screamed his name, and it only drove him to make her do so more. His soul glowed brightly in his rib cage, the pleasure of hearing her pleasure, of feeling her surround him and squeeze his magic only heightened his own pleasure. He knew he could spend the rest of his existence with her, sharing moments like these again and again... he wanted to give her the life she deserved... the pleasure she deserved to experience and nothing less would do. She let the ecstasy take over as she finally gave in "sans sans sans...mmm," she moaned as she gave in once again. He purred, every part of her delighting him as the pleasure built between them only to swallow them both whole as if it were a fish and they were the worms.

She tried to catch her breath as she started to relax again "Well ... we know friction still works..."

"yeah... we definitely have some chemistry goin' here." He replied, snuggled against her. Frisk cuddled up to Sans as she started to drift to sleep. He was all for going back to sleep again, as he drifted off he felt the last of the heat fade away... It was finally over until the next year. It would be a relief to be able to have some control again and not need to have three rounds just to feel normal. He purred softly as he began to drift off. Things couldn't get any better, for the moment, than they were.