Was that a mistake?! Little cousin caught wanking!!!

I was so looking forward to visiting my aunt. Also to finally see Steffen my little cousin again. I had no idea that he had already grown into a really young man. When I actually wanted to get him out of the room to chill with him in the garden, I couldn't believe my eyes. He was really lying in his room and jerking off. But that wasn't enough, he was also jerking off to my films. I couldn't believe it. Somehow the situation really turned me on. I don't know if I really had to go that far. I really think it was too much. What do you think, did I go too far?