First time I ever received a request for someone to draw my characters was when @drcharlotterodricks asked if she could do a special episode in her comics as a collab. Her little fancomic collab is the first ever I got and it's so cute! I love it :3 I did one of hers as well, she even allowed me to draw her characters as animals, which was super fun. After that, there have been a few of my subscribers asking if they can do fanart of my characters. It always makes me feel honored and I just love each and every fanart I have received. I didn't think I would ever receive fanart to be honest since my comic isn't extremely popular. I always assumed only comics and novels with large followings get fanart, but now I know that's not entirely true. I am grateful for all the lovely subscribers I have.
Like a lot of others here, I am okay with most kinds of fanart but incest is a big no. And extremely sexualized is a no for me too. I do read NSFW comics and novels, but I have a sensitivity about my characters. Even I don't draw my characters sexualized or NSFW stuff (implied and dirty jokes, I have done, but nothing explicit) because I feel uncomfortable about making my characters like that and just drawing that kind of stuff myself in general. The only time I drew nude individuals was in school for art class. I felt awkward about it then as well xD I am thankful the fanart I have received has been so fluffy and respectful ^^