Whether you've written them yourself, or read and loved someone else's, post 'em here.
Mark Mature stories as such, and the reasons it has that rating.
Also share any other details you think are worth sharing before readers dive in.

Title: Burrowing Under Barriers
Rated: Mature (detailed scenes of nudity, sexual intercourse and very suggestive/explicit dialogue).
Pairing: WildeHopps.
http://archiveofourown.org/works/6893947/chapters/15728932

So glad you asked, Cloperella! I found lots of good Zootopia fan fics that I want to share!

1) Title: Bunny and the Fox by CartoonNerd12
Rated: K+
Pairing: WildeHopps
https://www.fanfiction.net/s/11934580/1/Bunny-and-the-Fox

2) Through Waves and Shadows by CartoonNerd12
Rated: K+
Pairing: WildeHopps, OCxOC
https://www.fanfiction.net/s/11966035/1/Through-Waves-and-Shadows

3) Opal by Sophie Ripely
Rated: T
Pairing: WildeHopps
https://www.fanfiction.net/s/12195633/1/Opal

4) Mystery of the Grand Duchess: Judy Hopps by DisneyOtakuXL
Rating: unknown
Pairings: WildeHopps, and GazellexFinnick
http://disneyotakuxl.deviantart.com/gallery/58661917/Mystery-of-the-Grand-Duchess-Judy-Hopps

5) Zootopia 2: The Sequel to the Movie
Rating: T (This is a crack fanfic that satires all the tropes and memes that were very common in the Zootopia fanfiction (the early ones at least) Read with caution)
Pairings: WildeHopps, WildeOC, JudyOC
http://cimar-wildehopps.deviantart.com/art/Zootopia-2-The-Sequel-to-the-Movie-640934383