Warning: sam will be extremely dominant here!

Your pov:
So sam and I have been in a secret relationship for quite some time now.
Secret cause well dean and Cas have no damn idea,
So tonight sam and I were up super late looking for a case.
We've been looking alllllllll day and I'm tired.

I find myself dosing off.

"Hey!" Sam mildly yells.

I jump up and hit my elbow."shiiit that hurt." I say holding my elbow.

"Come on you gotta stay up so we can find a case."

"I don't wanna I'm tired!" I complain.

"And I don't wanna stay in the bunker all day too bad."

"Well go for a hike dammit!"  I get up and begin walking away from the table.

"Excuse me princess who do you think you're talking to." He said wrapping his hand around my waist.

"Sam this isn't the time we agreed to do this in the bedroom."

"Well, daddy wants you now!" He growls."stop disobeying or you will be punished.!"

I give in."yes sir."

He clears the table. "Strip and lay on the table." He demanded.

"Yes, sir." I take off all my clothes and lay on the table.
Sam surveys my body and runs his hands along my curves then he runs his hands up my thighs and into my honeypot.

"Don't make a noise or else you will be punished."

I tried so hard not to moan but I couldn't help it I let out a moan.

He pulled his fingers out I whimper.

"Bad girl! Get off the table and lay across daddy's lap!"

"Yes, sir," I answer seductively

"Hey guys Garth just called with a new cas-" dean yelled coming in the room.

I squealed and hopped into Sam's lap he covered me up,

"What the hell!?" Dean yells running back to his room.

~~~~~~later~~~~~~~~

We were all in the car it was dead silent.

"Seriously of all places the library!!!?" Dean yelled.

"Told you it was bad idea sam but no...'daddy wants you now!!"

"Woah sam has a daddy kink!!!??" Dean said smirking.

Sam blushed so did I.

"You do have some nice cheeks I will not lie," Dean says.
Sam gives dean evil eyes.

"Dean shut your pinehole!!"  I yell.

"Ok ok, all I want to know is are you too just friends with benefits or more.?" Dean asked.

"More so keep your eyes on the bustin beauties," Sam says.

"Oook!"

God never again in the library.