Chapter Text
Tony’s relationship with Loki was kind of ordinary -- well, as ordinary as anything involving a demi-god and a genius who happened to be Iron Man could ever be.
Not everyone got it, but after the initial shock of him falling for the enemy, Tony’s friends had at least accepted, if not approved of, his choice in partners. Loki had changed when he’d returned to Earth, to Tony it had been obvious that he was not the enemy any more. He of all people knew that a person could change if they wanted to, and if they had at least some support. And Loki was sexy, that was for sure.
When and how sexual attraction and curiosity had led to a relationship Tony didn’t know exactly, nor did he care. It was more important that Loki was unusually accepting of Tony’s sometimes erratic behaviour and the fact that he tended to cancel plans on short notice if he was buried in his work.
At the moment, Tony was working on a new prototype for communicators for the team. The current ones were okay, but broke down too easily when a lot of magic was involved in a fight. He couldn’t even remember how long he’d been in the workshop without a break. Jarvis had tried to make him get some rest a few times already, so it was probably over 24 hours. That was the point where Jarvis tended to interfere, or at least made an effort, which Tony usually ignored. He hadn’t taken the time to eat anything either, just drank lots of coffee and a few of the green shakes Dum-E made for him -- they were as good as a meal, right?
Suddenly -- or maybe not, Tony hadn’t noticed him enter -- Loki was standing in his workshop, Jarvis turned off the music and both of them were talking at him, trying to get him to stop working, to take a break.
“If you refuse to stop for at least long enough to listen to me, I will have to put you over my lap and spank you like a misbehaving youth!” Loki exclaimed when Tony stubbornly remained bent over his work and hunched his shoulders as if he could block out their voices that way.
And Tony whirled around, stared at him open mouthed, shocked both by Loki’s words and the flood of ‘Want!’ that was crashing through him.
Apparently Loki was able to read both in him, because the next thing that came out of his mouth was: “What is your safeword?”
They had played with safewords before, and it had been a lot of fun, but was Loki just asking for permission to spank him? For not taking a break from his work? He must be crazy! Tony wasn’t a little boy to be told what to do and be punished for disobedience!
“Palladium.” Apparently Tony’s mouth decided to ignore his brain, because he blurted his safeword out as if his life depended on it.
A savage grin spread across Loki’s face and a second later, Tony found himself bent over the workbench, arm twisted up behind his back and his jeans pulled down to expose his ass to the cool air.
Then there was pain, first Loki’s hand, then Tony’s own belt, and he kept struggling, and yelling at Loki, demanded to be left alone, to go back to work, but he never used his safeword, didn’t really want to, even if he didn’t understand why. It hurt, it was humiliating, and Tony was furious -- and then things shifted. Tony relaxed, the pain morphed at least partially into pleasure. They both got off, quick and hurried, a hand on Tony’s cock, Loki’s cock rubbing against Tony’s burning ass.
After, Tony allowed himself to be led upstairs, ate whatever Loki put in front of him and then went to bed for a straight 8 hours of sleep.
The next day, they talked about it, and agreed that whenever Tony neglected his body’s needs for too long -- didn’t eat, didn’t sleep in over 24 hours -- and refused to stop when asked by Loki, that Loki could repeat the spanking. Because the forced rest had helped, Tony’s mind was working at full capacity again, and he found the mistake that had kept him from finishing his work within a few minutes.
It happened again, a few times -- Tony could just not shut down when he was working on something important, his brain refused to let go, to be still. And Loki never let him get away with it, if he was in danger of harming himself due to lack of sleep and food.
If his friends knew, they’d probably approve even less. Tony couldn’t imagine that they would get why he could agree to something like this. But he didn’t give a rat’s ass about it, this was between him and Loki -- and it helped.