As Sans took a shortcut to the lab he realized that Alphys sounded exited. She hadn't sounded so exited in well... a wile.
As soon as Sans stepped into the lab he found Alphys ushering him into the 'bathroom' and towards the true lab.
They walked along the twisting and turning halls for what seemed like hours until he came across the room with all the beds. The room was almost the exact same as it usually was but with a few things added on. There was a robot similar to Mettaton but with silver where the pink should be, there was also a table with a upside down heart shaped glass vile presumably for the soul. There was also a large tube, made of.. something, that got smaller and smaller until it reached the vile. Sans assumed it was to shoot his attack into.
"A-alright Sans, are you sure you are okay w-with this? This will take the majority of y-your magic storage." Alphys questioned,
"ya ya i'm okay just... let me take a short nap first from this skeleton of walking i'm bone tired." YES double pun!
"Y-Yes O-of course take as much time as you need! There is still a few things I n-need to p-prepare an-anyway."
"thanks." Sans stated as he leaned on the wall and began to snore
Alphys pov
Those few things was herself. She had to be ready for another amalgamate or worse.
"D-deep breaths A-alphys, deep breaths"She whispered to herself,
Soon Alphys was ready as she will ever be so now all that's left is to wait for Sans to get up, witch could take a wile, so she busied herself with a few last minute adjustments to her calculations. This could not go wrong.
Sans pov
In just a moment Sans woke up making it known with a quick pun
"i was having the most humorous day dream."
She responded with a few nerves giggles.
"O-okay Sans I'm r-ready if y-you are."
So Sans got off his butt bone and walked to the tube.
"fire in here right?"
"R-right. You should began using it when I say g-go."
"'right lets get this show on the road."
"Ready? GO!"
And with that single command the blaster fired.