Rating: NC-17
Warnings: Incest
Notes: This is an AU of my Stark twins verse for
stardustcities, who wanted actual twincest instead of just Steve dating siblings. So this is little gift of unrepentant porn for her.
“There’s, uh. Something I wanted to ask you.” Steve is blushing a deep pink, which to the twins is usually a good sign.
“Yeah, Steve?”
“Just- please don’t get upset? We can just forget it if-”
“Steve,” Tony interjects, “you really think you can shock us?”
“Point.” He smiles a little. “It’s just... sometimes I think about you two, Um. Both of you. I know it’s weird...”
“It’s not weird,” Tasha interrupts. “Seriously, you think you’re the only person who has filthy twin fantasies? Please. What did you have in mind?”
He shrugs a little. “I didn’t really have anything in mind. I didn’t really think you’d actually consider it.”
The twins look at each other appraisingly, both heads tilted.
“No penetration.”
“And no oral.”
“And we stop if it gets too weird.”
“Obviously.” Tasha kicks the covers back while Steve and Tony trade places on the bed, everyone shuffling into place. Tony pushes Tasha’s hair back from her face and then threads his fingers in at the nape of her neck. She tilts her head up obligingly and lets him kiss her, and Steve makes a strangled sort of noise. They’re both so damn beautiful, lean and tan and strong. Tasha wraps her arms around Tony’s waist, and both of them part their lips at the same time. Steve doesn’t know if they’ve done this kind of thing for an audience before- he wouldn’t put it past them- or if they just know each other well enough to anticipate every move, but either way the slick slide of their mouths is incredibly hot. Steve moans a little, and Tony breaks off to glance over at him.
“Touch yourself,” he murmurs, “this is your fantasy, enjoy it.”
“I am,” Steve says fervently, and both of them laugh. Tony tumbles Tasha on to her back and runs his hands down her body, his calluses catching over her nipples and making her gasp softly.
“Boys,” she says, “how are you feeling about toys?”
“I could do that,” Tony agrees after a moment’s thought. “Nightstand?”
“Yeah. The purple vibe.”
Tasha rearranges herself while Tony rifles through her drawer and leans up on her elbows to look at Steve. “Got a good view?” she asks him.
“Yeah.” His voice comes out throaty, and Tasha smiles and extends a hand to lace her fingers with his as Tony settles himself between her splayed legs and turns the vibrator on. He fiddles with the settings for a moment and kisses Tasha’s bent knee, then presses the toy against her.
“That good?”
“Yeah,” Tasha sighs, hips pushing forward. “Steve can direct if he wants.”
“I don’t think Steve’s thinking too clearly,” Tony answers with a grin. Anyway, between idle gossip and having watched her with Steve, Tony has a pretty good idea of what Tasha likes. She moans and sighs and arches, and with his free hand Tony pets at her side. He’s looking at her but he can Steve in his peripheral vision, jerking himself off as he watches them. His breaths come faster in pace with Tasha’s; Tony can hear when they’re both getting close.
“Tasha?”
“Harder,” she pants with a little whine, “c’mon, I’m almost-” she breaks off when Tony leans over and kisses her wet and messy as he turns up the vibration, and both she and Steve arch and tense in the same moment, her with a choked-off noise and Steve with a low groan. After a moment Tasha squirms away from the vibrator and pushes Tony’s hand back, so Tony turns it off and tosses it aside.
Steve stares up at him, glassy-eyed. “That was the hottest thing I’ve ever seen.”
Tony smirks. “Of course it was. Think you could repay the favor?”
“I can’t ever repay that favor,” Steve says, “but I’ll get you off, if that’s what you mean.”