Monsters sure did make a point to be punctual, it wasn't even three hours later that everyone had assembled in the cabin you shared with Sans and Papyrus. Toriel, Asgore, Asriel, Frisk, Undyne, Alphys, Mettaton and Papyrus were all chatting away happily with each other in the living room. Of everyone gathered, only Toriel, Alphys and Undyne seemed to know what may be coming; as they were desperately trying to capture your gaze. Your father and siblings seemed to be half asleep.
"Okay, ya nerds; I can't take the waiting anymore," Undyne said softly, "are you going to make us wait all night?"
Everyone's attention rested on yourself and Sans and he beamed suddenly, the skeleton looked like he couldn't help himself anymore.
"_ and i are expecting a baby." He murmured. Asgore, Asriel and Frisk were suddenly wide awake as the room was filled with elated cries. Toriel lifted you off of your feet and was cradling you like a child, causing you to flush in response.
"Oh, my child! I am so happy for you!" Toriel told you with a wide grin and her amethyst eyes fell on a shell-shocked Asgore, "we are going to be grandparents, 'Gore."
Since it seemed like their father wasn't going to answer them, Asriel and Frisk were tugging at Toriel's purple robes.
-Baby?- Frisk signed as Asriel stared up at you in askance.
"You both are going to have a niece or nephew." You told them with a smile and Toriel sat you down, happy tears in her eyes.
"And Sans is the daddy?" Asriel questioned.
You nodded and looked over to your soul mate to see Papyrus looking between you in confusion.
"I DON'T GET IT, SANS!" Papyrus said over the joyful cries of everyone and Sans grinned up at his younger brother.
"we made a babybones together, pap," he said patiently, "you are going to be an uncle."
Papyrus frowned at Sans and then slowly looked between you.
It was quite apparent when the taller skeleton finally realized what this was all about.
"_ IS EXPECTING A BABYBONES?"
Undyne and Alphys cracked up laughing at his delayed understanding.
"yes, bro," Sans said patiently, wrapping an arm around you as you shook with suppressed laughter.
"AND I AM GOING TO BE AN UNCLE?"
"Yes," you confirmed once you had your breath back. His eye sockets filled with dazzled sparkles.
"I WILL BE THE BEST UNCLE EVER. I PRO-" he broke off when he saw Frisk signing at him, "NO! I SHALL BE THE BEST, FRISK! NOT YOU!"
"Oh dear..." Toriel murmured with a fond smile as the two got into an argument with each other.
Sans' bony fingers tangled with yours as you simply allowed the happiness in the room wash over you.