Boyfriend lies and watches porn?

So ever since Ive been dating my boyfriend (11 months) he has said he doesn't watch porn since he dated me. Today I took his iPod and was on YouTube looked at his history and he had videos about 'how to install porn on ipod' 'wet Tshirt contest' videos. And there was a few more. Yesterday he was talking about how wet Tshirt contests are dumb cause they take their shirts off anyway. Then I said have you ever seen one? And he said no. But I just saw he watched a video on that. He always looks thru my stuff too more than i look at his our relationship is fine we trust each other or should I say trusted. When I said I saw these things he said stop invading my privacy. I know there's nothing super bad on YouTube but it's just annoying me that he lied. Tell me what you think about this.