When Undyne finds out that one of her friends is ticklish, a big tickle war starts with the friends. (This takes place before Frisk falls down)
Cover drawn by me
Poor Sans, ya know all this could have simply been avoided if ya just listened to your brother and Undyne, ya wound't get chased all over the Underground. *falls to floor and uncontrollably laughs*
GRILLBY ALL YOU CARE IS ABOUT THAT TAB DONT YOU KNOW THE WORLD MIGHT RESET AND ALSO IF YOU TICKLE SANS TO DEATH HE CANT PAY HIS TAB! Man that fire gets on nervs!!!