<human>: Can you summarize the given text in a few sentences?

We have been dating for over 2 years (living together for 3 months now) and he knows my stance on porn.  I don't care that he watches it, sometimes I do too and we have had a good sex life for the majority of our relationship.  Recently, on our shared computer I was about to log in to my personal reddit account.  He was logged in, and this drop down folder of more than 15 pornographic subreddits was open.  I feel really uncomfortable with this, especially since gonewild was there.  To me, gonewild is like receiving nude pictures from random girls.  The other porn subreddits bother me just as much since they have crude names and make me feel like he's slightly perverted for subscribing to all of them.  Overall I am not sure how to approach him on the subject without him thinking I violated his personal space.  I feel like I've been cheated on in a way and I just don't want him doing this sort of stuff behind my back.  I can't sleep at night knowing he views nude photos/videos of random girls on the internet that aren't porn stars.  Any advice on how to talk to him will be much appreciated.
<bot>: Boyfriend secretly follows gonewild & 14 other porn subreddits.  Not comfortable with it and need to sort this out.