Is it normal that my cousin just watches me jerk off

Hey so I rarely see one of my cousins and one time like 1 year ago he was dropped off at our place for Christmas. One day he had asked me if I watched porn. I said yes. And i said did he jerk off and he dodged the question. I said jokingly 'ha how bout I just jerk off right now' and he said wait really and I just wanted to see where it was going and said 'yyesss' (really unsure) and he said ok then. And he pulled down my shorts and just stared at me like he was waiting and I said wait do you want me to.. He said yeah. I was balls deep at this point (pun not intended) and I started jerking off. Is this normal. Am I the only one? Have anyone else do anything like this. He's straight. But he didn't stop me or anything. So is this normal?