These Never End Well

Got this prompt of Ifunny and I hope to do it justice.
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Hey dean when you get back we need to talk -SW
"Finally!" I say, exasperated. Cas just raises his eyebrows, so I tilt the phone towards him. "He thinks we don't know. Seriously." He replies, just as surprised as I had been months ago. "Guess so." I pause. "You wanna mess with them." Cas smirks evilly, finally picking up on Human expressions.
"What do you have in mind?" I grin back. "I'm thinking good cop/ bad cop. You know, I don't approve, you try to get me to give him a chance." Cas looks like he's thinking about it. "You know you're about to start a prank war with Gabriel, right?" I just nod. "This never ends well." He sighs.

--------That Night--------

Sam rings his hands nervously while he paces the length of the study. If Gabriel wasn't making noise the bunker would have been silent except the footsteps. "Quit that! They'll be fine with it." Sam turn again. "How would you know that!" He sighs, running his fingers through his hair. "I just know it!" Gabe said like he was one hundred percent sure. Sam just kept pacing over and over again.
A while , and a rut in the carpet, later, the hinges to the main bumper screech open. "Sammy? I got some food! Well mine is food, yours is like carrots and stuff." "In the study, dean!" Dean comes in followed by Cas. "What the hell is he doing here!" He says gesturing to Gabriel. "That's kinda what I wanted to talk to you about." I pause and forget to continue.
"Well, spit it out!" Dean yelled. Sam flinched. "We're kinda.... Together." Dean widens his eyes. "Oh hell no! You ca-" Cas placed a hand on his shoulder. "Give it a chance, dean. Sam gas been happy lately." Dean turns on him.
"Have you forgotten that this SOB killed me over one hundred times? Does that not ring a few thousand bells?" He then turns to Sam.
"I expected a coming out speech, which I wouldn't need but would have been better than this!" Sam furrows his eyebrows. "Wait, wouldn't need?" Dean rolls his eyes. "When I came back from hell Baby smelled like cheap cologne. You like the fancy shit."
Dean pauses and smirks."That and the fact that when you were 16 or 17 you limped and refused to sit for a whole day." Sam blanched, eyes wide. "You remember that?" Dean nods. "Vividly. I laughed cause I always new you were submissive." Sam just gapes.
Deans eyes harden again. "Wait that means... No! Gabriel tops doesn't he. Ohh my god that midget tops!" Even Cas was snickering at this point, surprised at both deans acting skills and gabriel being a dominant half.
Dean continued his rant for about 15 minutes. Cas taps his shoulder and whispers in his ear, "Give it a chance, for me?" Dean sighs. "Fine, I'll give it a chance, but only one." Sam sighs, relieved. "Thanks, Dean." Dean smirks, "No problem but tell me right away next time not six months after something happens." Sam nods, but his eyes widen.
"Wait a second! I never said how long we were toge0ther!" Dean just smirks. He turns to walk to his room, but first he slaps Cas' ass and calls over his shoulder, "Come on sexy, we don't have all night , and I promised something new!" As dean turns the corner he sees Cas foliwing and Sam and Gabe gaping.
After he rounded the corner he peaked back around and said, "You either better hope these walls are sound proof or leave, 'cause I have some ideas in mind." Sam just gagged while hurrying outside the bunker to find the nearest motel.
Let's just say within the next few weeks there was Nair, a bit of pink hair, and duct tape involved. Cas was right, I didn't end well.
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This fic was for AmyPond17 on Ifunny im not sure if they have a wattpad account, if I knew I'd say that one. I think this was a pretty decent oneshot, adios my burritos, (I'm hungry again （＞ｙ＜）)