Tony refusing to do anything but sit there and watch while Peter rides him and does everything himself so he can claim on a technicality that he never fucked Peter. He didn't do anything wrong by just laying there and letting Peter do whatever he decided to do, and if his baby boy decided to bounce on his daddys cock till he cried and came all over himself well than thats not his fault, now is it?
Alpha!Tony who keeps mentioning in interviews how embarrassing it is that his little slut of an omega son is pregnant as a young teen
Only to then fuck Peter hard and tell him how proud he is that he’s such a needy bitch that he got pregnant on his very first heat and how good he is for always spreading his stupid little legs for his daddy
dad!tony with who wants nothing more than to feel his sons tight hole around his cock. who tries to deny his feelings until Peter is talking about a cute boy at his school at that tips him over the edge.
dad!tony who bends the boy over the nearest surface and rips off Peters pants, letting the rest at his mid thigh and grabs a handful of his ass. He squeezed the flesh roughly with a groan because he knows what's to come.
son!peter who lets out a squeak as he's forcefully turned and pinned around. who arches his back into his fathers touch and lets out a whorish moan when Tony's finger begins to rub over the boys hole.
dad!tony who drops to his knees and shoved his face between the boys ass cheeks. He licks over his puckered hole repeatedly, loud wet noises sounding throughout the room as Tony eats his ass messily. Who shoved his tongue deep into his hole and wiggles it around as his hand reaches up to fondle with his cute balls.
son!peter who wasn't expecting any of this but can't seem to pull away, his dads mouth was just too good. who grips the edge of the thing he's bending over and moans out Tony's name as he paints the surface white with his cum.
dad!tony who slams the boy back down when he tries to stand up and turn around. who blankets the boys body with his own and grinds his cock against Peters hole and tells the boy "just the tip, baby."
dad!tony who fucks the boys tight hole with the tip of his cock, biting back the urge to slam into him because he knew he wasn't stretched enough for him. he wants so badly to feel the tight warmth of his son wrapped around his cock but he knows he can't, now right now at least.
dad!tony who settles for the tight feel around the tip of his cock. he grinds his hips back and forth with more restraint than he's had in his entire life. his eyes are glued on the image below him, wanting to paint the picture into his mind for later purposes.
son!peter who never knew how much he wanted Tony until the man started touching him. who was sure that the feelings he had were completely innocent. there's no way he could like his dad like that?! but there's no denying when he doesn't push Tony away and is moaning like a cheap whore beneath the older man.
dad!tony who cums inside the boy and it drips out down the boys thighs as he pulls out. who leans down and licks him clean, tongue slobbering over the hole and slurping up the cum before standing up. he turns Peter over and grabs him by the cheeks, forcing his mouth open and letting the cum drip into the boys mouth before pressing their lips together in a messy kiss
I’m not big on Starkercest BUT give me Tony and Peter who discover AFTER they’ve fallen in love and slept together (aka fucked hard) that they’re biological father and son. And they’re in too deep now, so I guess they’ve just got to continue dating and fucking because there’s no way they’re breaking up JUST because they’re related
Peter bringing home the boys he casually dates during college to introduce them to his dad, Tony. Tony thinks none of them are good enough for his brilliant boy, gives them the (extreme) shovel talk and it usually scares them off. Peter pretends not to know why none of his relationships work out as soon as he brings them home, but he’s secretly pleased because he only ever brings them home to kind of piss Tony off.
Sure, it’s fucked up that he enjoys seeing how territorial Tony can get over his own kid.
Because Peter’s a little shit, he decides to test the waters as to how Tony would react to him dating someone much older.
It’s his dad’s go-to place for business-related meetings, and of course Peter had purposely suggested to his date that they should have lunch there. Considering that he’s the Tony Stark’s son, Peter does have some pull of his own and requests for a table that puts him within Tony’s line of sight. He’s a little shit that loves being the centre of Tony’s attention, so he lets his date touch his hands. Accepts the casual hand on his thigh, and feigns interest in whatever it is that he’s saying.
He feigns surprise when they’re informed a few minutes later (a grand total of three minutes) that someone of importance has closed out the entire restaurant. It’s even more obvious when Tony stops by their table and tells the guy to fuck off.
“Dad.”
“You know, Pete, when I said you should broaden your horizons, I didn’t mean dating someone who looks as if they belong in a geriatric home.”
“He’s only 45!”
“Really? A bit too early to be having that tiny bald spot at 45, don’t you think?”
“Dad.” Peter snorts. “I know you’re always saying I deserve the best. But finding someone who can provide and take care of me the way you do is damn near impossible. And you know that. I’m starting to think that you secretly like it that you’re the only one capable of doing so.”
Tony grins at Peter in that infuriatingly cheeky way of his, leaning back comfortably against his chair, “I don’t think it’s ever been a secret, Pete. Do you really need anyone else when you’ve got your daddy?”
“Well, daddy dearest.” Peter leans forward in his seat, eyeing Tony. “Is that why you’ve been purposely sabotaging all my relationships?”
Tony calls the maitre d’ over, requesting to be served their usual favorites.
“Dad.”
“They should stuck around if they were serious about taking care of you.”
“Dad, you threatened Harry so badly that he dropped out of our Statistical Mathematics class and till today, he runs off in the opposite direction whenever he spots me.”
“Honey, all I said was that no one would be able to find his body if he ever treats you wrong. I’ve watched enough Criminal Minds and NCIS to cover my tracks.” It’s not something to be joked about, but Peter laughs. “You’re my precious baby boy.”
After lunch, Tony brings Peter to one of the boy’s favorite boutiques to shop at as an “apology” for “disrupting the date”, and Peter can’t complain.
“You know, since no one ever comes close to the way you take care of me, maybe I should just date you, dad.”
Tony nearly drops the bottle that he’s in the midst of uncorking, Peter watching gleefully from where he’s comfortably sitting cross-legged on the sofa.
“No one’s good enough, dad. You’ve raised the bar so high that everyone else pales in comparison. You’ve spoiled me.”
I occasionally think about a scene from HIMYM where Barney is dancing with a woman in a super dark nightclub only to find out after grinding with her that it was his cousin.
Now imagine that with Peter finding out he had basically been letting his dad, Tony, dry hump him as they moved together on the dark dance floor until the big reveal. What then? Go home and try and pretend like it never happened? Or go to a dark corner, alleyway, or restroom stall and finish what they started?