Guy asked on a date if I’m fine with him watching porn.

I’ve been on 6 dates with a guy and he asked me to be exclusive. We’re both in our mid 20’s. He brought up the topic of sex for the first time and we talked about normal things like testing, birth control. But then he asked if I masturbate and if I’m fine with him watching porn in a relationship. It kinda gave me the ick and I’m wondering if it’s a red flag. Not sure how to proceed.