Marvel Cinematic Universe+2
After Training, Everything Goes Wrong
by barton_lover
When the other Avengers get busy and leave Clint and Tony alone in the tower, the two actually follow a suggestion from Steve and do a bit of training. Sadly, as with anything involving Clint, the training doesn't fully go as planned. Clint has now been de-aged to a small child! And what's worse, the thing that did it to him was untested for a normal person and unstable. Unsure what would happen next and not ready for the many challenges ahead, Tony and Clint do their best to stumble along until everything gets fully solved.

