WHile an elder I had one young brother about 24 years old confess that he and his kid brother had twice mutually masterbated. Neither were baptized at the time and it happend when they were like 15 and 13 years old. Both were serving at Bethel and had been appointed as MS by that point.
I asked him if he prayed for forgiveness. Yes. Do you believe that your baptism was a fresh start/clean slate? Do you blieve god's holy spirit is running this Org including the appointments of MS and Bethelites? Ys
So I told him the problem was not the 'exploratory act of a young child becoming a sexual being' but rather a lack of faith in Christ's forgiveness. If he trully believed in it why would he continue to carry the guilt for so many years. If he truly believed Holy SPirit was involved in appointments should not his and his brothers being appointed as Servants in the congreagation and to serve at 'god's hous' prove of such forgiveness?
Personally I think he was trying to get his brother in trouble since the younger was being fast tracked congregationally and at Bethel. He confessed this to three other elders after me. <shrug>
That was probably the wildest thing anyone outright confessed to in my experience. Lots of 'confessions' after being caught but very few proactive confessions.