Hey everyone! Just signed up to this forum but saw this one about fanfiction and since I'm on it constantly, I thought I'd share my thoughts too! By the way, thanks for the shout out to my stories before. :)
I'd really recommend Brother, Brother by niazn. It's about Luke taking in Jess who is 15 and his brother Jason who's 17. It's really good seeing Luke adapt to having two teenagers and also seeing Jason and Jess gradually warm to Luke.