Specific fic: J2/Cas pairing with superheroes
Anyway! From what I can remember, Jared was a superman-ish hero who lands on Jensen's car (I think Chris was in the car as well?) and Misha was sort of like Batman (who I believe Jensen was going to interview). I remember Jensen having to be saved by Jared when a villain attacked his office building and later both Misha and Jared save him from a warehouse(?) where they have him tied up in a chair (and I do remember Misha having made a weapon to help save the day).
If anyone can help me find this I would be most appreciative, as I have looked long and hard before coming here. If you feel like dropping a similar rec feel free, as I will never turn down a good story- finished or not haha.