Your pov:

I'm Sam and Dean's younger sister or as they like to call me the secret Winchester weapon mostly because most demons are always looking for Sam and Dean they never see me coming!
Sam and Dean got themselves a girlfriend! The first week I was happy for them then after a while, all the cutesy couple stuff was starting to get annoying!
Always kissing and cuddling and the girls were always so giggly and flirty and I'm over here on a couch by myself like a lonely potato.
Oh but even worse....now that these girls have stepped into their lives I have to sleep on the couch in a hotel!
Those couches are uncomfortable as hell. Usually, I would cuddle with Sam and Dean but now my only cuddle buddy is the back of the couch.
One day Sam and Dean come back they both looked so lost and hurt I rolled my eyes and turned my back to them and tried to take a nap. So them and their girlfriend can get all lovey-dovey as they want. But I didn't hear any giggling or flirting o turned around.

"What's got you two so down in the dumps?"

"They scammed us. They took all our money and left." Sam said.

I laughed so hard." and I thought you two would be the ones to skip town on them."

"Shut up! You're just jealous and mad because we made you sleep on the couch!" Dean yelled.

"Oh, right now I'm loving this couch and I have nothing to be jealous of you got dumped! Not even a demon or the darkness in dean's case can stand you two for long." I teased.

Sam and Dean looked at each other.

"You got her legs and I get her stomach?" Dean questioned.

"Yep!" Sam agreed they came over to me

"Don't yall dare do it!" I yell

Sam held down my feet while dean tickled my stomach.

I laughed so hard "please stop!" I beg.

I kept hitting dean but he wasn't fazed.

Soon Cas popped in.

"Cas you came just in time help us with something," Dean says.

"No Cas do-!" dean covered my mouth.

"With what dean?" Cas asked.

"Tickle (y/n)."

I shake my head.

"What?" Cas says confused.

"Just wiggle your fingers into her sides," Dean says.

I lick deans hand he removed it and wiped my saliva off on his jeans.

"Eeeww!" Dean said

"Hahaha victory is mi-" Cas started tickling me I laughed so hard and I couldn't stop soon Sam Dean and Cas were triple-teaming me.
"Alright, mercy I call mercy!!" I yell

They stop tickling me.

"But I guess we have been pretty unfair to you since we never paid you any attention," Sam says.

"Yea I do feel bad now sorry sis," Dean says.

"You guys have to make it up to me."

"How? we don't have money." Dean says

"I don't want money this time. Let's just watch tv together like the good oi' days before those tramps came along!" I say smiling.

Sam and Dean exchange glances and shrugged.

"Why the hell not?" Dean says.

"Yay!!" I say.

Afterwards, Cas left and we all sat on the couch watching tv I rested my head in deans lap while my legs draped lazily across Sam's like the good ol days.

Just like it should be.