You held still for Sans, who was fitting you for a dress he had recently made. It was a nice shade of red and very velvety, but it was a bit too big for you. So, what did he do? He handed you the dress and told you to put it on.

"Hold still, Human. You're squirming too much."

Kneeling down, he measured your waist while he held a pin in his mouth, his sockets narrowing as he took another pin and aimed it. With a swift motion, he stuck it in place, accidentally pricking you in the leg.