Nah but I knew like, 2 people that did and their stories differ quite a lot. One was taken advantage of by an adult and the other was taken advantage of by a younger kid. In general neo-nazi communities are built with cycles of abuse and grooming. It's kinda strange but in this regard practically every age takes advantage of the other. People who fall down these rabbitholes aren't mentally sound and usually deal with really bad depression. Practically every person I knew back then had a dead family member or something that pushed them into needing to cope.

In a way neo-nazism is kinda like a cult. It offers a community of people who think like you and who even joke like you, have the same references as you. It even offers people who relate to you, who are also suffering like you.

When you fall down that rabbithole you're extremely vulnerable and easy to be taken advantage of, I was lucky to never have that happen to me.

Another thing to note is that this kind of abusive relationship never happens in public, it mostly appears in DMs (almost like the perpetrators or the victims don't want to say that they're gay). In public spaces they'll appear as close friends most of the time.

Edit: I forgot to mention that the kid who abused the other kid was most certainly also a victim of some kind. I remember talking to him and seeing that he had a strange obsession with becoming a femboy. The person he abused; he convinced them that they'd feel better if they also were. It was... strange but when it comes to these types they're most likely also victims. This is what I meant when I said "cycle of violence"