Babysitter

"Aren't you too old to be needing a babysitter?"
"Aren't you too old to be dressed as a superhero?"

Clint Barton was assigned a special task. He knew it was a shit assignment but there was nothing he could do about it except for suck it up. What was this assignment? Simple, make sure two "kids" with powers learned how to properly use them. but when he mets them, they were nothing like he expected.

[Marvel AU]