Is it ok? should i feel ok about watching it? was does it say abut me?

a few years ago i tried watching thirteen, the one about the two girls. but i couldnt finish because i felt like a perv due to the ual subject of two 13 year olds. even tho i know there older then that in real life i still felt wrong and dirty and disgusting. should i feel like this? what does this say about my character? i love movies with lots of drama and movies that change your life. or move you so i want to finish it. should i? thanks for help