Hi, @tiggles-uwu, I’m your Squealing Santa! I really hope you like this fic I wrote for you, I’m sorry if it’s bad as this is not my main fandom! I hope you have a wonderful Christmas!
@ticklygiggles, thank you once again for doing this, here is my submission!
Mark sat down next to Y/N on the edge of the bed, awkwardly prodding at their head and making his way down their body. He called out your name as he did so. Obviously, there was no reaction from them, at least not until he poked the end of their shoulder blade, which made Y/N make some sort of weird noise between a grunt and a squeal. They turned their head to the side, slowly opening their eyes to see who was awakening them.
"Hey.. can you like... not do that?" Y/N croaked out, not noticing Mark's smirk as they stretched their arms over their head, cracking their knuckles as they did so. What Y/N did not expect to happen however, was Mark to scribble under their arms. Y/N squealed in surprise as they slammed their arms against their sides, feeling too tired to even attempt to hide their hysterical giggles.
"So... ticklish, huh?" Mark commented casually, adding his other hand onto Y/N's hips, squeezing it to hold them in place as he shook his other hand into their ribs, not giving poor Y/N a chance to answer as they squealed with loud laughter. They thrashed around all of the place in a feeble attempt to throw him off.
"NOHOHO, I'M AHAHAWAKE NOW STOHOHOHOP!" Y/N squealed out, managing to grip onto Mark's wrists as they tried to push him away. However, it was more than obvious that Mark was too strong, so he didn't even budge and continued squeezing and tickling them.
"Well, what a fascinating discovery! What's so funny, huh? Sleeping in until 11am is no laughing matter!" Mark teased, moving to scribble both hands into Y/N's armpits, earning a shriek from them as they yelped and squirmed around as much as possible. They had no other option but to shake their head and try and push Mark off the bed for a second of relief.
"NONONONO YOU'RE TIHIHIHICKLING MEHEHE YOU AHAHAHASS!" Y/N bellowed out, now just attempting to kick Mark off the bed. They knew they couldn't hurt him, so they just kept attempting to get him off that way. They also heard Mark gasp, which was probably a sign that they were pretty much screwed. The fact that Mark had grabbed their flailing ankle confirmed that assumption.
"You did not just call me an ass." Mark murmured evilly before really going in for the kill, he held a good grip on Y/N's ankle before scribbling his blunt nails up and down their sole, making Y/N shriek with laughter as they punched the mattress as a way to express their torture.
"I CAHAHAHAN'T, MAHAHAHARK I'M SOHOHOHORRY!" Y/N begged, feeling their free foot kick Mark repeatedly in the leg as they cackled with laughter.
"I dunno, you called me an ass so... I need to make sure you never call me that again, even if you're raging during a game." Mark grinned, now scribbling into Y/N's toes, earning high pitched squeals off them whilst they continued to cackle with laughter.
Eventually, Mark gave them a break, he got up after giving Y/N one more side squeeze. "Don't worry, Y/N, that will not be the last time I tickle you. Now get up, I have a game I wanna show you." Mark called with a cheeky grin before leaving poor Y/N to recover by themselves and get downstairs.