Hi, love your recs! Do you know any fics where Steve and Tony are doing the do (or are about to) and one of the team members walks in catches them? Or maybe something where either of them is taking care of themselves and the other one (maybe Steve) walks in? Thank you so much in advance!

Hmmm…I’m not sure I know of many quite like that (though some feature a moment of “Ooof, you guys get a room!” but it is fleeting).  There are some that are sort of voyeurism or accidental voyeurism that kind of work like that?  Some are closer to your suggestion, but I think these are in the spirit of what you were looking for.  Anyway, here are some suggestions for you!

DON’T JUST WATCH, LET YOUR AUTHORS KNOW HOW  MUCH YOU ENJOYED THE EXPERIENCE!

Where Comes This Light From? by makeme85: The elevators in stark tower are out of order and Clint
has to take the stairway which leads him to an abandoned corridor and a
little window…

Este e Ocupada by windscryer:
“Hey, have you seen the…? Oh.”

Hypothesis by foxxcub: “A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.”Or, Tony watches Steve watch porn.

Across the Courtyard by Apprendere:
The cute kid with the window across from Steve’s dorm room seems to be
unaware his blinds are open enough to see through. Steve is embarrassed
and goes over to tell him.

Watching You Watching Me by Skydiver_Tomyo:
Steve was just going to talk to Tony. Yes, that’s what he was supposed to do.
Not standing there by the door, watching Tony jerk off and definitely have a daydream about it.

unintended results by @theappleppielifestyle: Tony stares at the ceiling, white-knuckling his pockets. I will not get off to Steve jerking it. I will not get off to Steve jerking it. I will not- That
thought is put on hold as something starts to buzz, and Tony has to
bite down forcefully on his tongue to stop himself from groaning out
loud when he realizes what it is.He shakes his head quickly, takes a short breath in and thinks, I will not get off to Steve fucking himself with a vibrator. I will not get off to Steve fucking himself with a vibrator, over and over until Steve’s whimpers, his fucking whimpers, drown out whatever Tony is trying to think.

For Science by @copperbadge:
Tony discovers top-secret footage of Steve Rogers pre- and post-serum. And discovers why it’s top secret.

Learning Opportunity by Nix (CrimsonQuills):
Voyeurism. Set after the entire existing run of Young Avengers, which is
early in New Avengers, I believe. Kate drops into the New Avengers
quarters looking for advice. She finds something else.

CDII by SevlinRipley:
Prompt: Steve’s been hit with sex pollen or maybe he’s just really horny
and heads to the lab to track down Tony to help resolve his problem. He
soon discovers it empty, much to his annoyance. However, he does spot a
gauntlet resting on the work bench and is hit by all the fantasies he’s
ever had of getting off with Tony in various states of dress in the
armour. Knowing that he has to do SOMETHING about his little situation,
he takes matters into his own hands and basically uses the gauntlet to
jerk himself off. Of course, JARVIS being the sort of intelligence that
he is, decides that it’s a good idea to send the live video feed to
Tony’s phone. Tony, who just happens to be in a board meeting at the
time. Obviously, the footage is MUCH more interesting than what he’s
supposed to be concentrating on but it becomes hard to focus on anything
when JARVIS links him up to the audio as well…

Everything You Desire by @cptxrogers: After a run-in with an unfamiliar villain, Steve ends up tied up and left with a vibrator up his ass.This is not the kind of battle he was expecting. Just as well Tony is there to help him out.

Just a Whisper by @some-blue-jack:
Tony’s always had a little voyeuristic streak in him.

Watching is Sometimes Better by someboys:
Tony catches Steve touching himself when Steve thought he was sleeping.

Blue Movie by BewaretheIdes15:
Alright, look, confession – Tony has been masturbating to Captain America since he was thirteen.

Poster Child (series) by sabrecmc: Tony likes the new poster of Captain America.  A LOT.