(Time Skip : 2 Years)

It was early in the morning while Summer and Mettaton were soundly sleeping but, Summer's eyes suddenly popped opened , she untangled herself form her husbands embrace and made a mad dash to the master bathroom. Where she promptly started to throw up the contents of her stomach which woke up Mettaton who unplugged himself ,and rushed to his wife's aid .

"Love are you alright" Mettaton asked in a concerned tone as he saw his beloved wife bent over the toilet wrenching

"do I look alright Mettaton " Summer replied in a peeved tone before she flushed the dark pink bile down the toilet.

"Geez I was only asking, you don't have to bite my head off Love" Mettaton said as Summer brushed her teeth and rinsed her mouth out with MTT Brand Mouth wash .

"Sorry Metta-hun I just don't feel so, good right I'm going to see Alphys later today for a check up" Summer said before she kissed her husband who of course returned the kiss .

TIME SKIP TO ALPHYS'S LAB...

"So, you threw up pink Bile" Alphys asked Summer

"yeah what do you think is wrong with me" Summer asked her friend

"Uh I have an Idea what it might be but, well I kinda have a confession to make" Alphys replied in nervous tone.

"Okayyyy" Summer said

"When I built Mettaton's EX body he wanted it to as Human as possible so, to do that I built him his well parts and in his male organ I synthesized male genetic material but, I never thought It could impregnate anyone and you're the first woman that Mettaton has ever been with I'm so so sorry" Alphys explained as she begged for forgiveness.

"So, Alphys you mean I'M PREGNANT " Summer said before she passed out on the examination table

After Alphys called Mettaton at his studio , he rushed to her lab , and Alphys explained everything to him

"So darling you mean I'm going to be a father" Mettaton said in an excited tone

"Yeah and i'm going to be a mother" Summer said in a groggy tone as she woke up

"you two are going to be the parents of the first half human half Monster child in the world congratulations" Alphys said with a smile.