Saw Him Jerking It

One time not too long ago I was at my aunt and uncles visiting talking out side around evening time, nighttime when I walked past my cousins basement window where his room on my way to the bathroom I looked in and saw him going to town on himself(jerking off) I was definitely like whoa what did I just see and looked again kinda to make sure of what I saw and yep he was jerking. I was shocked a little bit but I know it’s normal I do it too obviously but what I wasn’t expecting is that it made me wet and a bit horney. When I left my aunt and uncles place I went home had a bath and masturbated myself thinking of what I saw and shit was it good. Sometimes when I see him now I think about it and touch myself and to be completely honest if the opportunity arose I’d suck his cock no problem