What I can remember is that for some reason Steve and Tony were on a plane going someplace. Steve kept calling the flight attendants 'dames' and then mentally scolding himself. At some point in the flight they eat something that either Tony or the attendant made (eggs?). Steve notes that Tony doesn't look to good, and Tony is shaking and sweating as he collects their dishes. The flight attendant tries to take the dishes, but Tony insists that he can take them. The flight attendant isn't catching on to Tony attempting to leave the room, but I think that Steve does at this point. Tony drops the dishes and shoves past the attendant to vomit into the sink. I can remember the woman shrieking 'Eww!' at this point and Steve goes to comfort Tony. I think that Steve felt guilty about leaving a mess for the attendants, but was more concerned for Tony. Tony was very upset and I think he may have cried a bit and then he and Steve snuggled on a sofa.
I'm sorry for the long explanation but I have literally spent multiple hours searching for this. I keep thinking that it may have been Bruce instead of Steve, so that might be, but I almost certain that it's not (I don't know if I need to tag that...). I don't know where it was from. I just know I read it at some stupidly early hour in the morning and didn't bookmark it. Thanks in advance. THANK YOU!!