Sooner Rather Than Later
Peter Rogers-Stark is the biological son of Steve Rogers (aka Captain America) and Tony Stark (aka Iron Man). Peter is secretly Spiderman and plans to keep it a secret from his family, the Avengers. One day, Peter comes across a merc with a mouth and finds it to be very frustrating: keeping a secret, fighting bad guys who set out to kill him and his family, and dealing with a mercenary who is crushing on him.
I DO NOT OWN MARVEL OR ANY OF THEIR CHARACTERS
You will find this on fanfiction.net and AO3
My ff - EccentricHearts
My AO3 - larryboobear8