It was just another lab session with his mentee Tony. No different from any other. The pair would work on their respective suits and projects while Peter helped Tony and generally gave the new super hero advise and help. But for some reason on this day while watching his mentee work on improving his own armour while singing along to the music playing in the lab that Peter realised something. He was in love with his mentee. His much much younger mentee. It was as this revelation that caused Peter to drop the tool he currently had in his hand and alert Tony that something was wrong. Peter tried to wave away the younger man's concern only to be kissed by Tony without warning. Stunned at what had just happened Peter soon found himself being told by Tony that he was glad Peter had finally got with the program before Tony took him by the hand and lead Peter to his room and closed

Married Artificer Tony and Druid Peter joining an adventuring party to go on a quest together

Tony and Peter helping to build a small farming community in the ruins of the old world together. Providing food and shelter for people in need and a play to stay and set down roots for those who wish to put wandering the wasteland behind them.

Married Tony and Peter who act as both owners and curators of the local occult museum and yet might be not quite a human as they appear to the town.

Detectives and partners Tony and Peter taking on a new case together.

Hades and Persephone au

Boyfriends Tony and Peter going exploring together to try and find out if the local legend of a witch living deep within woods is actually true. Only for what was meant to be a simple hike (neither of them believed in the legend but it's was fun for the pair to imagine) to turn out much darker than they expected.

You know you've fucked up right. No no I'm serious. Sure you've managed to kidnap me a rather impressive feat in itself but one you also managed to while I was in the suit. You've still fucked up. Now if you were smart you'd have just taken the suit and left me by the side of a road to be picked up or even not kidnapped me at all. After all everyone else who I've been kidnapped by certainly since I became Iron Man hasn't come out of it that well. So that should have dissuaded you. Oh don't be like that I'm not gonna be the one to deal with you. But carrying on with how you fucked up. You then, instead of SI or Pepper my CEO, choose to ring my husband to be who you are going to demand a ransom from him personally. What your expecting to walk through that door is a distraught billionaire with a briefcase full of cash who you can take as a second hostage. Terrible plan really. Because who you've actually invited into your hideout is in fact Spider-man. Surprise. I mean not only is there the enhanced strength and reflexes you have to worry about but Peter also has full access to my tech and resources and so will be able to track my position quite easily. As well as him being able add additional fire power to his suit all to use against you. And you've made him very very mad.

Oh hey honey you're here early.

Knight Tony travelling into the demon realms to rescue his lover who has been kidnapped into their depths

Alchemist partners and lovers Tony and Peter accidentally creating an explosion during their experiments the effect of which rendered them functionally immortal. And with their newfound immortality the pair spend countless lifetimes together discovering the world and exploring mysteries of science they could never have imagined in their first life. As well as getting married again and again and again whenever they set down roots in whatever new place that they called home.

High school boyfriends

It started as a day like any other for Tony Stark. Deal with the board and any pesky meeting before heading over to R&D to talk and joke around with his people, making sure to spend a bit longer with the new hire Peter in the desperate hope the other will see his interactions as the flirting it was, then spending the rest of the day back to his personal lab until he goes to sleep. That was until he woke up the next day and found the meeting gave him a distinct feeling of déjà vu, not that this meant much as Tony never really liked paying attention at these things as the board members were annoying and JARVIS provided a much more succinct overview of the points made afterwards. But it wasn't until he went to R&D and saw the same projects being worked on without any of yesterdays progress that he realised something odd was going on. Something had reset Tony's day. And it was resetting his days over and over again. It was only after several repeated days of tearing his hair out trying to solve what was happening to him that Tony finally decided to tell someone else. He called Peter to one side and told all. It took a few more goes to memorise all his possible reactions so as to finally convince the younger man but he did it. The pair didn't make much progress (none really) until on the final day Peter saw how exhausted his boss was and took him to a quiet bar to relax in what it felt to Tony was years. It was as they got slowly buzzed from the alcohol that Tony threw caution to the wind and confessed his felling to Peter. He was going to remember it after all. That was when the biggest surprise he could have gotten happened. Peter had a crush on Tony too. Soon the pair found themselves making out in the elevator to Tony's room before falling onto Tony's bed. Not that anything happened between them. The long term stress and recent relief regarding his feelings had tired Tony out more than he already was while Peter had drunk decidedly more than he should have and the couple were soon asleep in each others arms. All too soon Tony found himself once more woken by the incessant beeping of his alarm. This time however he also hear someone else next to him moaning and telling him to turn the damn alarm off.

Cinderella au with Peter as Cinderella and Tony as the Prince

Peter visiting his husband in hospital hoping that today will be the day that the doctors will sign off on letting Tony leave and finally come home to rest after saving the universe.

Tony and Peter finding themselves stranded together on a deserted island after a particularly brutal battle left the pair unconscious and adrift at sea. As the days go by waiting for rescue the two of them slowly start to get closer to each other until they start looking at the other in an entirely different manner to the platonic/familiar one they saw each other in before.

Tony using whatever means necessary to bring back his lover after his murder at the hands of the authorities. Alongside some improvements to both his and Peter's physical bodies to prevent this from ever happening again.

After an accident in the lab while Tony and Peter were examining a piece of alien tech the pair found themselves in each others bodies. Although quite a shock for the pair further investigation of the tech showed that the effect would be temporary and they soon found themselves taking advantage of the situation to have some fun in each others bodies.