Figured it's time to update this thing. For fan's of macro, hyper, yaoi (Y)/hentai (H), and/or fanfiction, here's just some of the one's I've worked on with Expansion K on writing.com and other websites, or just started period.

Writing.com Collabs
Naruto Growth Interactive: https://www.writing.com/main/intera.....ry/map/1351221 (Y)
Characters so far: Naruto, Kiba, Konohamaru
Digi-Growth: https://www.writing.com/main/intera.....wth/map/125131 (Y)
Characters so far: TK, Davis, Tai, Izzy, Cody
Hyper Animated Boys: https://www.writing.com/main/intera.....Boys/map/11311 (Fairy Tail) (Y)
Characters so far: Natsu, Gray, Romeo, Sting, Rogue
: https://www.writing.com/main/intera.....ap/115111(Blue Exorcist) (Y)
Characters so far: Rin, Shima

For these ones, feel free to add to any chapter except the last one. That one is always reserved for either myself or Expansion K. I will try to add to the others as well! (Note, you will need a Writing.com account. Don't worry, it's easy!)

Oh yeah, I just go by J.D. on there!

Writing.com Growth:
Fire Emblem: https://www.writing.com/main/intera.....ys/map/1413311 (Percy)

Miraculous Ladybug: https://www.writing.com/main/intera.....oys/map/125111

Young Justice: https://www.writing.com/main/intera.....Boys/map/12311 (Y)

Hitman Reborn: https://www.writing.com/main/intera.....s/map/11533111 (H)

Bearchive (good site for cock growth, primarily hentai)
Anime Corruption of Champs: http://www.bearchive.com/~addventur.....67/967776.html
(based off of Corruption of Champions by fenoxo. Fun cock growth/ anything grows game!)
Waking Up with Extreme Cock: http://www.bearchive.com/~addventur.....3/1213134.html
(Never really been able to figure out a way to start this...)

Other mentions:
Naruto: Waking up with Cock: http://www.bearchive.com/~addventur.....oot970071.html
Ring of Truth: http://www.bearchive.com/~addventur.....oot848324.html
Waking up with Curves: (BE and PE): http://www.bearchive.com/~addventur.....oot825827.html

If you're interested in other types of growth stories, or might want to work on one, let me know! Hentai or Yaoi!