(OLD VERSION) One Big Unplanned Mistake (Sanscest)

Chapter 3: Gravida

Sans sighed as he got in Paps and Stretch's house 3 days has past since Sans had explained things with Undyne, she agreed she wouldn't tell anyone and actually volunteered to give Sans some of her magic which is today so after that he comeback to his brother's home.

Sans got in the house seeing Stretch smoking on the couch, Sans grimace using his hand to cover his nose trying to not inhale the smoke in the air.

Stretch turned to Sans seeing the other's reaction to him, he muttered sorry going out of the door. Stretch sighed smoking he had been observing Sans the whole time and from his observation he realize Sans might actually been lying to them what his sickness is.

Stretch puffed his cigarette seriously Sans had been lying to his brother the whole time about his condition and he was pretty sure Paps knows Sans is lying to him. He and Papyrus had known Sans for a long time so of course they could see right through him.

Also Stretch had gotten a call from Blue and Red saying that Sans had been throwing up lately, had been feeling nauseous and Red said that Sans din't even drink coffee anymore which actually surprised him the most since Sans had been the one who would always drink coffee whenever he can.

This whole time Stretch had been trying to fit all the puzzle pieces together until he realize something that hit him like a ton of bricks wait........ Feeling nauseous..... Din't drink any caffeine........ Had been throwing up lately........... HOLY FUCKING SHIT SANS IS PREGNANT 'Wait Stretch calm down yes that may be a possibility but you had to make sure first' Stretch thought calming down.

Well....... It looks like Stretch had something to ask Sans during dinner.

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"SANS, STRETCH, IT'S TIME FOR DINNER" Papyrus yelled from the kitchen as Sans slowly walk to the kitchen with Stretch following behind eying Sans every move as they sitted.

Sans look down at his plate in it was the taco Blue had made for him that he had drop off earlier, his stomach grumbled getting the attention of Papyrus and Stretch as Sans flush while Paps smiled. He look down at it one more time before he was thinking something was missing........

"Hey Paps can you get me some ketchup and mustard?" Sans said bluntly, looking at his brother.

Papyrus and Stretch were surprised when Sans said that sure Sans would always drink ketchup but mustard?...... "Uhh sure brother" Papyrus said handing Sans a bottle of ketchup and mustard.

Sans took the two bottles before drenching his taco with ketchup and mustard as Paps watched in disgust as Sans ate it.

"Sans are you pregnant?" Stretch said without even thinking. Sans choke on his taco before looking at Stretch with an uneasy expression.

'Oh fuck how did Stretch found out' Sans thought fidgeting in his seat thinking if he should tell the truth. He got up and stood in front of Papyrus and Stretch, he hesitated for a moment before pulling the hem of his sweater showing his summoned stomach in it was two souls.

Silence fell, heavy and suffocating.

"S-sans oh my Asgore........" Papyrus said trailing off as Sans look down clenching his fist "Sans why din't you tell me that........ I WAS GOING TO BE AN UNCLE" Papyrus yelled excitedly.

Sans was shocked by his brother's reaction but soon relaxed seeing that his brother was actually not against this. He sighed in relief atleast his brother is fine with this, he then look over at Stretch who had an unreadable expression.

"Sans who's the father?" Stretch said rather proud at himself for guessing right and was curious who was the father of the babies "Oh yah, who is the father Sans? I had to meet them and why din't you tell me about your relationship with someone?" Papyrus said cheerfully.

Sans felt uneasy looking down at his stomach "Yeah......about that... there's actually.... no relationship at all..." Papyrus decided not to push the question knowing full well about his brother's uneasiness.

"Really?..... Then who's the father?" Papyrus said gently so he wouldn't make the other more uneasy.

Sans rubbed the back of his neck nervously "W-well I think it's better if I don't tell since...... They don't know themselves that I'm pregnant with their baby" Sans said quietly but was heard by the two.

"Wait so you have been feeling weak lately because of the two souls your body has been nourishing?" Stretch said dropping the subject.

"Yes and apparently my health and magic had tremendously drop that's why Undyne and Alphys have been donating me some of their magic to help with the process of me nourishing the souls" Sans said quoting what Alphys said earlier.

"Oh, I guess you guys had found out" Fate said coming in the kitchen which startled the trio. (For those who don't know Fate is an OC of mine that is based of the Riverperson)

"Wait...... I haven't even told you yet... How come you already know?" Sans said confusingly at Fate. Fate shrug "I can sense souls remember? That's how I found out about it when I visit you the other day"

Sans sighed it's true Fate had visited him the other day, he guess he forgot that the other can sense souls because his mind had been occupied at that moment.

"Fate what brings you here anyways?" Papyrus said looking at Fate puzzled. "Oh yah, Paps do you have some milk? I ran out of milk yesterday and I was about to bake something today so yeah..." Fate said.

"Sure you can have it" Papyrus said smiling at Fate as he handed her the milk. Fate smiled back saying "Thank you" as she got near Sans.

"Oh yah this reminds me, Sans you shouldn't walk for too long when your pregnant also if your friends will donate some of their magic to you this had to be done 3 times a week since their magic isn't too familiar with the souls unless it's their parents than only once a week" Fate said.

The three of them look at her blinking "Uhhmm.... How do you know this?" Sans said.

"Oh that's because I've taken care of a pregnant skeleton before for 2 months since their partner is on a business trip that he cannot cancel" Fate said bluntly.

"Wait 3 times a week? Then what will we do? Sans will be going back to lived with Red and Blue next monday..... So he does that mean he had to tell them also?" Stretch said, Oh God if only he know.

Sans clench his fist "No"

"But Sans you have to tell at least o_" Papyrus said.

"No and its final Papyrus" Sans said cutting him off. Fate nodded seeming to already know why Sans doesn't want the to know.

"It's fine if you don't tell them, I can make something for you to have if your staying there.." Fate said as Sans nodded at her.

And cut........ Should I say something else........ Oh yah I hope all of you had a nice day/night and cya guys on the next chapter.

Me: (Actually still thinking if she should add more angst)