If you look into the Undertale dubbing community he was in a while back, there was a whole thing about an adult woman getting drunk and touching him while he was like 16/17. From what I can recall he traveled to the US for a con and met up with the dubbing crew he was a part of, who were mostly adults and he was one of if not the only teen, and they all got drunk or something. He technically wasn't allowed to drink in the US, but since he could back home the adults just let him. Anyways, they're all varying degrees of drunk, and this girl in her twenties started kissing him and touching him. He tried to push her off, but this is a pretty inebriated 16/17-year-old so he couldn't, and then the other adults who weren't as drunk had to separate them. I think soon after that the whole team fell through but I don't know the exact timeline.