The bone-zone (smut) (sans x frisk)

Most unexpected

Remember how I told you about that unexpected event a few chapters ago? Welp. Here ya go!
-------------------------------------------
It's been about two weeks since the lab incident. Alphys has requested to do weekly check-ups on frisk to make sure that nothing is happening with her soul. Sans and frisk were in bed snuggling each other. "Hey babe, you awake?" Frisk moves a little closer to sans and lifts her head. "Mmhm." Sans and frisk sat up in bed slowly. "Sorry if your sore. You did tell me to be rough though. I do my best to please." Frisk got up and got dressed. "It's ok. Last night was to amazing to regret." Sans got up and got dressed as well. "Well uh, I'd love to do it again sometime." Sans put his arms around frisk's waist. "Yeah. We'll have to do that again real soon." Sans kissed frisk and went downstairs. Frisk flopped down on the bed and then immediately getting back up. "URK!" She covered her mouth and ran to the bathroom. She slid strait to her knees and threw up in the toilet. "Frisk? Frisk you ok up there!?" Sans ran up the stairs and saw frisk over the toilet still puking. "Hey. Are you ok?" She flushed the toilet and tood up to the sink. "Yeah im ok. Just got sick all of a sudden." "Ok well come downstairs. Breakfast is almost ready." Sans and frisk went downstairs and ate some bacon, eggs, and pancakes. Frisk was hungrier than usual. "Wow girl you ate more than I did. And thats sayin something." Frisk cleaned her plate and put it in the sink. "Sorry Im just really hungry. Im also having some weird cravings." Sans did the same with his plate and grabbed frisks hand. "Well I guess thats normal for girl humans, right?" Sans and frisk went to, and sat on the couch. "Yeah but thats only if you have your period. I don't have my period." Frisk turned on the tv and settled down to watch a movie. "Well I guess you could ask alphys when we go for you check-up today." Frisk nodded in agreement and picked out a movie to watch. Papyrus had left the house earlier to go see his robot girlfriend. They were alone in the house. Frisk picked a movie called Baby Momma. She didn't really know what it was about or why she chose it but thats what they watched. "Hey sans?" "What is sweetheart?" "Can you get me a dark chocolate candy bar please?"  Sans shifted a bit so he could go to the fridge. "Wait a sec....I thought you hated dark chocolate." Sans walked over to the fridge and looked for the chocolate bar. "Umm I do but I just REALLY want dark chocolate." Sans grabbed the bar and came back to the couch. "Thanks." As sans was sitting back down he accidentally hit frisk in the breast. "OW! OWOWOWOW!" Frisk jumped up and wrapped her hands around her chest. "Oh my god im so sorry! Are you ok?" Sans stood back up and went towards frisk. "No im not fine something up with me. My boobs are super sore, I threw up this morning and im not sick, and im craving dark chocolate! Whats wrong with me?" Frisk let go of her chest and hugged sans. But that just hurt her more. "Okay lets go see alphys. She'll know whats up." Frisk and sans left the house and went over to find alphys. Once they arrived at the lab sans and frisk walked in to see alphys watching anime on the screen. "Hey alph. We need you to look at frisk shes been acting weird all morning." Alphys jumped in her seat, startled by sans and frisk, and walked over to them. "Good to see you guys! S-so whats the problem?" Alphys led them to the examination room. "Well frisk threw up this morning for no real reason, then she started eating/craving the food that she hates, and finally her boobs are really sore. We have no clue" alphys put frisk on the table and did a basic check up on her first. Ok well everything seems to be normal, but I want to try one last thing just to make sure. Alphys had frisk sit in a chair that was leaned back. "I am going to do an ultra sound on your belly ok?" Frisk nodded her head and waited. Alphys put some jelly on frisk's belly and rubbed it arond with a little device. "Ok. Sans could you turn the lights out?" Sans walked to the light switch. "Sure thing alph." Alphys continued to rub frisks belly. "Well I don't see anyth- *GASP*" alphys looked at the monitor with an astonished look on her face. "What? What is it?" Both sans and frisk were worried. "I, um, don't know how to tell you this....but...um." sans was getting tired of waiting. "What? what is it?!" Alphys looked at frisk and sans. "Frisk your....your........pregnant." sans and frisk stopped dead in their tracks. They did not make a single move. "Congratulations you two!" Frisk and sans looked at eachother in disbelief. "W-wait how dose that even happen? I thought humans and monsters couldnt have children." Frisk said nothing, she sat there touching her belly. "Well sans actually it IS possible for a himan and a monster to have kids. The only problem is that it is very, very, VERY rare." Frisk started cring. "I-i'm...going to be a...mom?" Alphys nodded. Frisk wasn't sad at all. She was so happy she jumped out of her chair and hugged sans. "Sans were gonna have a family together." Sans fainted from hearing that he had gotten his girlfriend pregnant and that he was the father. This was a whole new world for sans and frisk.

_____________________________ oooooookay that was the unexpected event that I was talking about. But I bet you all already figured that out. Comment down below weather you knew before I told you. Ok byeeeeee!