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Dean jumped as Cas came up behind him, wrapping his arms around his torso, hooking their chin over his shoulder. “Hello, beautiful.”
“Uh, hey, Cas,” Dean responded as he turned his head to look at his lover, his cheeks flushing as Cas placed a kiss on his cheek. “Where’s this coming from, hm?”
“Can’t I just show my beautiful lover some love? Especially one that’s made such a remarkable decision for us,” Cas said sweetly as they kissed their way up and down Dean’s neck.
Dean took a couple of calming breaths as the attention on his sensitive neck went straight to his dick. “Baby, what are you talking about? What decision?”
Cas shifted their arms back to cup the lower area of Dean’s abdomen and positioned his lips at Dean’s ear to whisper, “To carry our baby, silly.”
If Cas weren’t holding him, Dean would’ve fainted with how fast his blood rushed south at the realization. Shit…
~~~ About a month prior ~~~
“I’m sorry, you want me, us, to do what exactly?”
Dean shook his head and took a breath before trying to explain what he wanted. Again. “I want you to treat me like your wife, lover, whatever and… And keep fucking me throughout the day, plugging me up each time so my- my belly swells- You know what? Never mind. Forget I said anything.”
Dean went red and wiped a hand over his face as he turned around to walk away, pausing as Cas said, “Dean, wait.”
“It’s fine, I know it’s out there and weird. We don’t have to do it, don’t worry about it.”
“Dean, stop. Look at me, please?” Cas paused until Dean did as he asked. “I’m not judging or shamekinking you…”
“Kinkshaming.”
“Right, that. I was just confused but I think I get it now.” Cas walked forward to take Dean’s hand in his, looking directly in those gorgeous, green eyes. “You want me to fuck a baby into you over and over again until you look pregnant, yes?”
Dean blushed harder, looking away for a moment before looking back at Cas with a nod, “Yeah…”
“Alright.”
“Alright? Just like that? You looked like you were having a stroke when I told you the first time and, what, now it’s ‘alright’?” Dean looked at Cas incredulously, both shocked and aroused.
“Yes. I think it’s been proven over the years that I will do absolutely anything for you, Dean Winchester. I don’t plan to stop now from a little kink,” Cas said as he tried conveying as much love as he could through his eyes. “Though I would like to talk more about this before doing it.”
~~~ Present Day ~~~
“Y-Yeah, right… I knew we wanted to try, I just didn’t realize we were going to start now,” Dean said quietly, too aroused to think straight but wanted to try to play along. C’mon, pull yourself together, Dean.
“No time like the present, right?” Cas took a step back and turned Dean around to look him in the eyes, dropping the sweet voice to ask seriously, “Dean. Do you want to do this now or later? We don’t have to.”
“No, no. Now’s good, really. Just surprised, is all,” Dean answered, nodding his head and relaxing his shoulders. “Where do you want me, baby?”
Cas relaxed with him, getting back into character as they smiled, “For now, on the bed. You pick the position. Strip.”
Dean shivered at the order, peeling his shirts off and practically kicking his pants off as fast as he could before getting on the bed on his knees. “Like this, baby. Want you to breed me.”
Cas let out a soft groan at that as he began taking his own clothes off before walking over to their bedside table to grab the lube and Dean’s favorite anal plug. They watched Dean’s eyes widen, his pupils dilate at the sight before Cas climbed onto the bed behind Dean. Cas opened and squirted lube onto his fingers, dropping the lube on the bed as he brought a couple of his fingers at Dean’s entrance to circle them at his rim.
“C’mon, baby, don’t tease. We got a lot of rounds to get through today. Oh fuck… ” Dean moaned as Cas firmly pushed two of his fingers into him, the burn going right to his dick. “Fuck, Cas.”
“I thought you didn’t want me to tease?” Cas taunted as he scissored his fingers, slowly fucking them in and out of Dean. “You can take this, right, darling?”
Dean gasped as Cas’ fingers brushed against his prostate, the burn going away quickly, “Yes! Yes, I can take it. Gimme more, oh…”
Cas added another finger, spreading his fingers as much as he thought Dean could take with how fast they were going, bringing his other hand to rest on Dean’s lower back. “Yeah, you like that? You like whatever I give you, huh? You’ll love it even more when I get you pregnant.”
Dean whined at the words, pressing his hips back onto Cas’ fingers. “Yes, yes… Fuck me, please. I need your cum so bad, Cas.”
“Oh, I know, gorgeous. Look at you, just dripping with the mere idea of me inside you. Fuck, I can’t imagine how you’ll be when you’re pregnant. All those hormones, screaming at you to get fucked again, and again, and again,” Cas punctuated each ‘again’ with a strong thrust of his fingers into Dean’s prostate, grinning at the cries coming from him.
“C’mon, Cas, please!” Dean begged, fucking back onto Cas’s fingers and forward to try and get some stimulation on his leaking cock.
Cas pulled his fingers out of Dean not-so-gently as he shifted his hips forward, taking his lubed up fingers to slick up his cock before positioning himself at Dean’s rim. “You ready for a baby. darling?”
“Yes! Fuck me already! Oh goddammit… ” Dean groaned as Cas slid into him until there was no more to give. Taking a minute to adjust, Dean tried reaching down to touch himself but his hand was swatted away by Cas. “Cas, please. I- I’m so close.”
“You’ll cum on my dick and my dick alone. Are you alright to continue?” Cas waited for a ‘yes’ before bringing his hips back and driving them forward, beginning a fast, hard pace.
“Fuck! Cas! Please, please! Up… You’re so clo- oh god -close to it,” Dean moaned at the strong fucking he was completely unprepared for, his climax building faster and faster. He made a noise he’d deny later when Cas angled his hips up and started slamming against his prostate. “Ah! Cas… I’m not gonna last…”
“So cum,” Cas ordered as he, too, rushed towards his orgasm, holding tighter onto Dean. As Dean finally came, Cas did too as he felt Dean’s walls constrict around him, squeezing every bit of cum he had to offer. For the moment at least…
Cas grabbed the plug and lube that was miraculously still on the bed and covered it in slick before slowly pulling out. Immediately, Cas pressed the plug into Dean before any cum could escape. Cas took a few moments to twist and push at the plug, admiring the various reactions Dean gave.
“Mmm, C- Cas… Enough, please,” Dean begged as overstimulation took over, trying desperately to catch his breath ‘cause he definitely hasn’t gotten enough air since before he realized Cas wanted to fulfill this particular fantasy of his.
“Sorry, baby. Just making sure you don’t lose any of my cum. I wanna make sure it takes,” Cas apologizes as they let go of the plug, pressing a hand against Dean’s side to get him to lay down. Cas tilts his head with an innocent look on his face as they ask, “Don’t you?”
Dean hissed as the movement pressed the plug against his prostate; there’s a reason it’s his favorite. “Yeah, baby. I’m just overly sensitive. And you cum more than an average person so I have no doubts about you getting me pregnant.”
Cas smiled before he laid down next to Dean, bringing one of his hands up to their lips to kiss the back of it, “I’ll take that as a compliment.”
“I’m sure you do. Now, it’s nap time. I have a feeling I’m gonna need all the rest I can get for today.” Dean scooted closer to Cas to lay his head on their chest, closing his eyes.
~~~ Later in the day ~~~
Dean was washing his plate after just finishing a quite delicious sandwich made by yours truly when he jumped again as Cas wrapped themself around him. The jump caused him to clench around the plug and pull a groan from deep in his chest. “Damn it, Cas. Is scaring me half to death over and over again a part of your plan today?”
Cas pressed a kiss on Dean’s shoulder in apology, moving their hands to rub his belly. “Sorry, sweetheart, didn’t mean to scare you. And no, scaring you isn’t part of my plan. This is though…” Cas trailed off as he slipped his fingers under Dean’s boxers to slip them under his ass.
“Cas, wait!” Dean startled again, rushing to put the plate down and reaching down to pull his boxers back up but Cas kept them where they were. “Damn it, Sam could come in here at any-”
“Sam isn’t here.”
That stopped Dean in his tracks, halting his efforts to cover himself, “What? Where is he?”
“Out. I told him to take a day away from the bunker so we’d have the place to ourselves. So that I could fuck you wherever and whenever I wanted,” Cas explained in a sultry tone in Dean’s ear, ending it with a kiss at the sensitive area behind his ear.
Dean shivered and started to harden in what boxers still covered him. “Damn… You really did think of everything, huh?”
“Mhm… I wanna make sure that this exceeds every expectation you have. Now that you know we’re alone,” Cas bites at the juncture of Dean’s neck and shoulder as they bring a hand to twist and tug the plug free of Dean’s perfect ass. They set the plug on the counter next to the sink as they take their cock out of their own boxers.
“Oh f- fuck… God, you really wanna do it right here, huh? In the kitchen where we eat?” Dean flushed a deep red under his clothes as he clenched his hole as tight as he could to keep as much of Cas’ cum inside.
“Like you haven’t thought about it,” Cas teased as he positioned himself at Dean’s rim before pressing inside with a groan. “Fuck… You’re still tight.”
Dean gasped and moaned at the sudden intrusion, unable to get used to Cas’ dick, no matter how many times they fucked him. He reached back to wrap one arm around Cas’s body and the other to bury his hand in their hair. “C- Cas…”
Cas just took that as his go ahead to grip onto Dean’s hip and start fucking him, slowing down more than before but no less hard. They went between driving into Dean over and over again before stopping to just grind his dick into Dean’s prostate that made his lover keen and rise up on his toes. Cas brought his free hand up and under Dean’s shirt to pinch and pull his nipples. “Oh these are going to be, ah, absolutely beautiful, swollen and full of milk for our baby, don’t ya think?”
Dean just whined and nodded his head, unable to breathe properly, let alone get words out. He leaned his head back against Cas’ shoulder, turning to let every noise he made fly into his partner’s ear.
“Oh, I see how it is. Mmm, you hear me talking dirty so you’re making it even with those filthy noises of yours. Well, I wanna hear you crying my name when you cum, got it?” Cas sped up his pace as they got closer to climax, desperate to fill Dean up enough so that his belly swelled. Another particularly pretty moan from Dean’s just as pretty lips tipped Cas over the edge and he began to fill Dean up with his cum. “Dean, Dean, please… Lemme fuck you ‘til I cum again, please. Wanna fill you up. Oh shit…”
Dean nearly choked on air as he was filled even more with his lover’s cum; Cas really did cum a lot and Dean had never been so happy about it in his life. Panting, Dean brought his arm wrapped around Cas down to touch his belly that was definitely fuller than before, sticking out not enough to be noticed at first glance but still there. Holy shit… “Cas, baby. Fuck, you gotta hurry ‘cause – ah – I’m so close, please! God, it’s working. I’m pregnant, baby, you did it. Feel our baby.”
Cas couldn’t help but whine at Dean’s words, bringing the hand playing with Dean’s nipples down to feel his belly. The feeling of their fingers brushing together on Dean’s full belly brought Cas to climax again, making him cry out as he pumped Dean fuller and fuller. “Dean!”
“Cas,” Dean cried out as Cas hit his prostate dead on as they came, pushing him over the edge with his lover. Dean gripped tighter at Cas’s hair as pleasure surged through his veins, his belly growing as it was flooded with cum.
As they both came down, they rubbed Dean’s full belly that they both pretended was full with their child and that was good enough for them.