I read Release by Patrick Ness (Walker Books, 2017) a while back and Forever by Judy Bloom (1975) even further back, although when I was an adult and a kids/teen librarian. (I’m no longer one of these things, most likely the former.)
Ness wrote his masterful exploration of homophobia, sex and strange paranormal happenings with inspiration from Forever. In 2015 the two bantered as the headline act at the Young Adult Literary Convention in London. In Sex in YA Danielle Binks wrote about the influence of Forever on the depiction of sex in YA books published after 1975.