Matthew's Pov: I'm Like a very extremely ticklish person. I have had been like that for as long as I could remember. It was my biggest weakness. So I 'd kept it a secret from the Sam, Castiel and Dean for quite a long time.

I'd been with Dean for a few months now and he'd only recently discovered that I was ticklish one morning, just by running his fingers up and down my sides absentmindedly as we both laid in bed which made me flinch away and Dean sat up in horror, thinking he'd hurt me until he heard my giggles and relaxed.

"Jheez Matthew! You scared me. What was that?"

"N-nothing." I tried to play it off.

He gasped in realisation "You're ticklish!" He leant over to reach for my sides again.

I jumped out of bed "I am not!"

"Are too!" He replied childishly.

"D2!" I had  shouted which distracted him and gave me the opportunity to run.

"Oh Star Wa- hey Matty come back!" He started to laugh as he chased me down the hall using his nickname for me. 

I'd managed to make it to the living room where the Sam and Castiel were, without Dean catching you yet.

"Nobody tell Deanie I'm here!" I hissed as I ducked behind the sofa on the far side of the room.

About 30 seconds later, Dean jogged into the room, catching his breath back he said "Has anyone seen Matt?"

They faked confusion at his question and shook their heads.

"He hasn't been through here, why do you want him?" Sam asked as he put his hands along the top of the sofa.

"Well I just found out he's ticklish and I've been trying to catch him so I can tickle him " He blushed as he spoke.

"Oh is he now?" Sam said as he dropped his hand behind the sofa and poked my side.

I yelped and jumped up, and playfully slapped Sam on the back of the head and screamed "Traitor!!" as I sprinted off again.

This time, however, Sam AND Castiel were on my tail, not just Dean. I'd taken a lot of sharp turns to hopefully confuse the team. I'd been running for what has seemed like hours when I looked at the ceiling and saw a vent and quickly jumped in it and just managed to get my legs up before I saw Dean Castiel and Sam run underneath me. "They must have split up. Damn it." I said as I regained my breath.

"You're damn right we did." Sam said from behind me and appeared from the vent on top of the one I was currently in. He reached and poked me and I squirmed and cackled, then covered my mouth, hoping nobody else heard me.

Then I cursed myself as I heard footsteps and saw Dean had reappeared underneath the vent and was smirking up at me. 

"There you are Bud. C'mere, we can go back to our room. Leave these guys behind."

"No! You'll just start tickling me again. I'm not leaving this vent for a long while." I said with sheer confidence until Sam poked me again and I laughed and squirmed.

"That is true but would you rather it be me or literally Sam Castiel and I"

I thought for a second and quickly dropped out of the vent, Dean catching me with ease. He threw me over his shoulder and began to walk down the hall to the elevator.

Dean's Pov: For some unknown reason, Matt decided to poke my sides, just out of curiosity, and I dropped him and turned around and looked at him with horror. "It's fine Dea you didn't hurt m-oh my god you're ticklish too!" He practically screamed the last half of the sentence he pointed at me with glee. He tried to poke me again but I dodged him each time.

"SATURDAY let Sam and Castiel know that Dean is ticklish and he's in the-" he started but was cut off by me kissing him. I walked him backwards into the elevator, maintaining the kiss.

"Oh you're gonna pay for that Matty" I smirked and grabbed his hands and held them in place so he couldn't tickle me again.

"Well it's only fair, you told them about me so I did too." He leant up and pecked my lips.

"Yeah I guess so." I leant my forehead on his.

"I can't believe one of the most menacing men on the planet, the sharpest hunter ever, is ticklish!" He giggled to himself as he spoke.

"I can't believe you hadn't noticed earlier, you are meant to be one of the greatest spies of all time, after all. I've tried to hide it a lot. Especially in bed, when you grab my sides or my ribs, it takes a lot in me to not burst out in laughter "

"Me too! I always thought I was being fairly obvious but I guess not." He smiled up at me as I put him down on the bed.

That evening, we slept together for the first time with our newfound knowledge and this time didn't hold all the giggles and laughter back.

Afterwards, we laid wrapped up in each others arms giving the other a poke and and playful grabs every so often.

The next thing you know, Sam bursts through the door, "Haha, we've got you now-oh God my eyes!" He screamed and covered hiseyes.

"Oh Sam , get over it, we're just laying here and the covers are over everything." I rolled my eyes and Matt snickered.

"My poor sweet innocence, ruined!" He exclaimed dramatically as he ran out and shut the door behind him.

After our interruption you both fell asleep wrapped up in each other's arms.

The next morning was filled with countless teasing from Sam And Castiel and as they'd walk past either myself or Matt to get something, they'd always poke one of us, hoping to get a reaction from us.

Matt's POV: I was always quick to slap whoever it was back so they'd stopped teasing you about it but continued with Dean because it was pretty funny to see him already in a fit of laughter from just hovering my hand near his side.