Sleeping feet

This past weekend my friend invited me over to have drinks to catch up. I was driving over so couldn’t drink that much and was only planning to stay for a few hours. When I arrived he had me try various dark liquor since he collects alcohol. After drinking for 2/3 hours I knew I couldn’t drive home so just drank a few more shots. Last thing I remember was him helping me to his spare bedroom and passed out. When I woke up my shoes and socks were both off and bundled up so I knew something was up. I went to go ask him about it but he left to go get some breakfast and left his phone. I went through it to see if I could find anything about this since I knew he liked feet. I eventually found a whole folder with pictures of my feet when I was passed out. Originally I was pissed and sent all the pictures to my phone and was about to storm out but when he came back I acted like I didn’t know anything but am lost on how to confront him. Now I’m not angry whatsoever since it’s just feet but just find it a little strange.