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Curiosity Killed the Cat (but satisfaction brought it back)

Summary:

Wherein Stephen is a bit of a sadist who will give up control if asked nicely, Tony is terrible with birthdays but terrific with caring for his boyfriend, and the Cloak is extremely curious about its human lovers and really wants to please them (with a little help from Friday). Peter Parker is just his usual precious self—innocent until his dads are proven guilty.

Chapter 1: Smut and Supremefamily fluff
Chapter 2: Cloak & Friday friendship and lots of birthday smut

Notes:

I wrote a sequel! I totally did not expect such amazing responses in the first 48 hours after posting. You guys are amazing! Also, I realized yesterday that Tony's birthday is today, so... Happy birthday, Tony ;)

I have a second chapter planned for this fic (hint: it's birthday smut), but I don't know if I can get it finished before the end of the day, so I wanted to get this out first.

Please leave kudos and comments; they're greatly appreciated :D And thanks to everyone who takes the time to read my work!

My beta is still my best friend, illegalplayer :)

Chapter 1: It's my birthday?

Chapter Text

Stephen awakens surrounded by the Cloak’s warmth. He opens his eyes to find Tony watching him sleepily while petting the red cloth over his stomach. “Good morning,” Stephen says, smiling at the man’s bleary-eyed look.

“Morning, sleeping beauty,” Tony replies happily, turning onto his side with a groan. “Yup, still feeling it.”

Stephen grins. “I told you I’d make sure you would.” He reaches out to brush his fingertips against the lingering scratch marks on Tony’s torso, occasionally putting pressure on the bruises scattered across his abdomen and earning little whimpers.

“God, I knew you were sadistic,” Tony whines. “Cloaky, make him stop.” The Cloak lifts its collar to face him while moving the part of its fabric that rests over his morning wood, causing Tony to gasp and buck up into its touch.

“I don’t know, Tony, I rather think you’re enjoying it,” Stephen teases. He pushes Tony onto his back and leans down to lick at the inflamed lines on his chest, the heat of his tongue making them sting. “Don’t you agree, Cloaky?” The Cloak perks up at the nickname, pleased that it managed to arrive at an understanding with its sorcerer. It nods its collar eagerly, still rubbing against Tony’s cock.

“If you keep that up,” Tony says through gritted teeth as he digs his fingers into the bedsheets, “I’m not going to last much longer.”

Stephen smirks. “That’s the goal, sweetheart.” He kisses his way across Tony’s tan skin to lap at his nipples, still slightly swollen from the night before.

“Ah, fuck,” Tony hisses, raising a hand to run it through Stephen’s hair and grip the back of his head, keeping his mouth in place. “Stephen, please….”

Stephen shivers, sucking a nipple between his teeth and nibbling it softly. He begins to rut into the mattress, needing friction against his aching cock. Noticing this, the Cloak carefully pulls him over to straddle Tony’s hips and wraps part of its fabric around both men’s dicks, holding them together as it strokes up and down.

“Cloaky,” Stephen gasps out as he pulls slightly away from Tony’s chest. “Fuck, that feels amazing.”

“God, where did you learn this?” Tony asks through his panting, lifting his hand from the sheets to pet the Cloak’s shoulder pad in encouragement. He tugs Stephen up with his other hand to meet his mouth in a sloppy kiss, both of them too aroused for finesse. The Cloak watches them, reaching its collar to nuzzle their cheeks as they make out.

When they eventually part for air, Stephen looks to the Cloak and asks, “Is there something you want us to do?” The Cloak nods hesitantly, its curiosity getting the best of it. “Can you show us?” With another nod, it leans forward to run an end of its collar over each man’s lips. In response, Stephen opens his mouth to allow the fabric entrance, which it slowly takes. It presses at his teeth in wonder, then stretches further to probe at his wet tongue, jolting back in surprise when Stephen responds in turn.

Tony laughs quietly and kisses the piece of fabric against his lips. “Cloaky, you’re adorable.”

The Cloak ruffles, embarrassed, and tightens around their cocks in retaliation, causing both men to moan. Seeing an opportunity, it dives the pointed cloth of its collar back into both of their mouths, muffling their sounds as it continues to stroke their hard cocks.

Staring into Tony’s eyes, Stephen watches as the other man begins to suck gently on the fabric between his lips. Never one to back down from a challenge—even one issued by a magical piece of cloth—the sorcerer decides to be more aggressive, licking forcefully at the fabric and shuddering when the Cloak chooses to push back, exploring the entirety of his mouth.

Tony looks on with hooded eyes as his human lover lets his head drop forward, overwhelmed by sensation. He hums while sucking gently one last time, and the Cloak shivers before pulling out of his warmth. “Cloaky, I think he’s close,” Tony says through his panting. He leans up to whisper into the taller man’s ear, “Come for us, Stephen. Please.”

With a muffled cry, Stephen lets his shaking body fall onto Tony’s as he comes hard. The inventor gently runs his fingers through Stephen’s hair while the Cloak strokes him through his orgasm, slipping out of his mouth so that they can both hear his deep whimpers.

“Oh, fuck, that was hot,” Tony says, his pupils completely blown and his breath leaving him in shudders.

As Stephen returns to himself, he huffs softly with a laugh and leans down to suck at Tony’s earlobe. “Your turn, sweetheart.” The Cloak lets go of Stephen’s softened cock and continues stroking Tony’s, with the sorcerer’s cum acting as a lubricant. The cloak snuggles between their bodies to rub the soaked ends of its collar against Tony’s swollen nipples, earning moans from both men as it touches Stephen’s sensitive body as well. A few moments later, Tony falls apart, sinking his teeth into Stephen’s neck as he releases his load.

The three lay there, both humans catching their breaths while the cloak settles against them. “Cloaky,” Tony speaks up, “You deserve a reward, as well. Maybe I can help clean you?”

The Cloak lifts its lower corner, dirty with a mix of its lovers’ cum, and Tony reaches out to pull it towards his mouth. He gently licks at the fabric, humming pleasantly at the salty, bitter taste. Taking it into his mouth, he sucks on it, wanting to swallow every last drop.

“Fuck, Tony,” Stephen says, enamored by the view. “You’re beautiful like that, with something in your mouth.”

With a smirk, Tony sucks off the last of their release before letting the Cloak pull out. “Well, we could go take a shower together…” he suggests. The Cloak wilts slightly, and Tony adds, “Hey, don’t worry, Cloaky. I usually use a washcloth, but…how do you feel about a little soap?” At its excited nod, he laughs and turns back to the sorcerer. “Stephen, speaking of using my mouth, remember what I said last night?”

Raising an eyebrow, Stephen asks, “Which thing was that?”

Tony smirks gleefully. “That I want to eat you out while the Cloak holds you down.”

The Sorcerer Supreme blushes. “I’m not sure….”

With a little pout, Tony begs, “Please, Stephen?” When it looks like the man is close to folding, he adds, “At least for my birthday? Please?” he asks sweetly.

Shivering, Stephen acquiesces, “Alright, sweetheart. When’s your birthday?”

“Not until the end of the month.”

With a frown, Stephen says, “Tony, it is the end of the month.”

“Oh,” Tony says, shrugging. “It’s May 29th.”

With a suffered sigh, Stephen lets his forehead fall onto Tony’s shoulder. “Well, then, happy birthday, sweetheart.”

“Wait, really?” He glances at the Cloak, which nods its agreement. “Friday? Baby girl, what day is it today?”

Friday speaks up from the walls, “I’m afraid they’re telling the truth, Boss. Today is Tuesday, May 29th. Happy birthday, Boss.”

Stephen groans. “Well, I guess I have some planning to do, since my boyfriend is such an idiot.”

“Hey, that’s so not—wait, boyfriend?!” Tony squeaks out. Stephen merely raises his eyebrow again, and Tony smiles happily. “Alright, boyfriend it is,” he laughs, giddy. “But what about Cloaky?”

“Cloaky is our lover,” Stephen suggests, glancing at the Cloak to see its response. When it nods and wraps around them both, snuggling in close, he adds, “It’s not any less important in our relationship, but considering the fact that it’s a thousand year old relic rather than another human, this is just the easiest way for us to define ourselves.” Nuzzling its collar against him, the Cloak communicates its acceptance.

“Alright, that makes sense,” Tony agrees. “As long as you both are happy with it, then I am, too.”

Stephen smiles. “Good. Now, how about that shower?”

-

When the two men and their Cloak leave Tony’s room in the Avengers Compound, Friday instructs them to head for the common area. Stephen has his suspicions, but he follows his curious boyfriend anyway.

They step through the door into a room full of balloons and people throwing confetti. “Happy birthday!” the group of Avengers cheers before they take in both men’s appearances.

Grinning, Tony says, “Aww, you shouldn’t have.”

“We wanted to, Mr. Stark,” Peter replies, not noticing anything out of the ordinary. “Oh, and good morning Doctor Strange,” the boy adds with a smile.

Stephen nods in return, his eyes sparkling despite his bland expression. He takes in the room as more Avengers seem to notice the bruises around Tony’s wrists and along his neck and the scratch marks that run down from his collarbone, which his tank top does nothing to hide.

“Tony, man,” Rhodes speaks up, censoring his words for the Spider kid, who continues to remain innocent and unaware, “I’m happy for you, but this is more than I ever wanted to know about your private life.”

Stephen smirks while Tony’s confusion slowly turns to understanding, and a soft flush covers his cheeks. The sorcerer watches Tony take in everyone’s expressions—Rhodes’ fond exasperation, Rogers’ blush that reaches his collarbones, Romanoff and Banner’s smirks, Vision and Maximoff’s amused glances at each other, Thor and Wilson’s grins, Barnes’ full-out laughter, and finally Peter’s confused innocence—and reach his usual conclusion: fuck it. “Oh Rhodeybear, you’re just jealous I have a sexy, magical boyfriend,” Tony answers, shoving his hands casually into his pockets.

Amused, Stephen says, “Careful, Tony, or you’ll traumatize your kid.” At his lover’s look of confusion, Stephen nods at Peter, who seems to slowly be piecing things together.

Tony shakes his head, “He’s not my—”

“OH!” Peter exclaims, shocked and completely red. “You guys are—oh, eww, I didn’t need to know that! You’re like my dads, that’s not something a kid should know!” He covers his eyes in embarrassment, not even realizing what he just admitted.

Stephen raises an eyebrow and glances at Tony. “You were saying?”

Pale, Tony chokes out, “Um, okay, I’m sorry, Pete.” He fidgets until the Cloak levitates off Stephen’s shoulders to settle on his own and nuzzle his cheek, which immediately calms him. He slumps his shoulders and smiles softly at the kid. “I didn’t realize you felt that way.”

Peeking through his fingers, Peter responds, “Felt what—oh, oh god, I didn’t mean to say that, Mr. Stark! I’m so sorry, I know you don’t think of me as—”

“Peter,” Stephen interrupts, taking pity on the boy, “I assure you Tony and I are both extremely happy about what you just said, as we both view you as a son—Tony more than myself, I’ll admit, but I haven’t known you nearly as long as he has. He just needs a minute to get it through his thick skull and stop freaking out.”

Peter stares for a minute before offering up one last worried, “But….”

“Pete, Stephen is right,” Tony finally speaks up. He walks over to the kid and reaches out for his shoulders. “I do think of you as my kid. It just scares me, since my own father was shitty, and I want to be better than that.” When Peter finally nods, Tony pulls him into a hug, allowing him to nuzzle into the Cloak’s fabric against his shoulder.

“Aww,” several of the Avengers coo.

Tony glares at them. “Get your own kid; this one’s mine,” he says, only half joking.

“I think you mean ‘ours’,” Stephen says, stepping next to them and ruffling Peter’s hair.

“Don’t you think it’s a little soon to have a kid together, Doc?” Tony teases.

With a fond smile, Stephen responds, “Tony, we’ve been dancing around each other for months, and we’ve known each other for years before that. I think we’ll be fine.”

Tony laughs. “Yeah, I know.”

“Um,” Peter says, glancing up at his dads, “Happy birthday again, Mr. Stark.”

“Hey, kiddo, no more of this Mr. Stark business,” Tony says, faking a stern tone. “If you don’t wanna call me Dad or something like that, then it’s just Tony.”

With a wobbly smile, Peter says, “Okay, uh, Tony.” He looks over to the sorcerer and says timidly, “Um...what should I call you?”

“Stephen is fine, for now,” he answers calmly, lowering his ungloved hand from the kid’s hair. “Whether you ever want to change that or not, you won’t offend me either way. And you don’t need to ask permission, kid.”

“Okay, Stephen,” Peter nods.

Tony laughs giddily as the Cloak tugs Stephen into the group hug. “Best. Birthday. Ever.”

Leaning in close to Tony’s ear, Stephen whispers, “And don’t forget, you still get your present from me later tonight.”

Unfortunately, Peter’s hearing is sensitive enough to catch his words. “Eww, gross, dads!” Peter yells, pushing away and covering his ears. “Super hearing, super hearing!”

Cracking up, Tony gets out, “Stephen, not—not around the kid!” He then doubles over with laughter, wrapping his arms around his stomach and trying not to fall to the floor.

Sheepishly, Stephen glances at their Spider kid. “Sorry, Peter, I completely forgot. I’ll be more careful in the future.”

Red-faced and looking slightly ill, Peter responds, “Yeah, it’s, um, I mean…thanks Doc—er, Stephen.” The Cloak levitates from Tony’s shoulders—dropping him to the floor in the meantime—to comfort Peter, wrapping around him and covering his ears with its collar. Peter laughs. “Thanks, Cloaky,” he says gratefully. “At least I can count on you not to corrupt me.”

Stephen rolls his eyes, remembering to keep his thoughts to himself so that Peter doesn’t overhear.

Kid, you have no idea.