"Toriel..." The doctor said, "You're pregnant. Congratulations!"
Toriel cooed, "Are you kid-in-me?"
"Seriously?" The doctor asked, "Are you making a pun out of your whole pregnancy?"
"Sorry doc," Sans said, "I guess you can say she's gonna take the profession of being a momedian for nine months."
"You guys are banned." The doctor growled, "Get out."
(Scene change: at their house)
"I'm gonna be a dad!" Sans exclaimed.
Toriel placed her hand over his mouth, "Sans, don't tell the kids yet..."
Asriel passed by, then looked at Sans, "Wait what?"
"I-I'm," Sans gulped, "Happy to be your new stepdad!" He gave Asriel a five dollar bill, "Buy yourself something nice, kid!"
"No," Asriel shook his head, "You said you were gonna be a dad..."
"Wha-" Sans started to blush, scratching the back of his head nervously.
Toriel sighed, "Well, we might as well tell you. I'm pregnant."
"You're pregnant?" Asriel yelled, "Hey Frisk!"
Toriel and Sans shook their head rapidly, "No no no!"
Frisk approached Asriel, "What is it?"
"Mom is pregnant!" Asriel exclaimed, "Which means we'll be big brothers!"
"Yay!" Frisk said, excitedly.
"Oh well..." Sans commented, a slight chuckle rising from his chest as Toriel was giving him a dirty look, "Sorry Tori."
Author's Note: Hey guys, this story isn't gonna be too long or detailed, just a little story about a new addition to the family. Who's excited to see the new baby?