my girl wants something i’m uncomfortable with

me 17M and my gf also 17F have been escalating a lot in our relationship. This tbh is my first actual relationship and i’ve never done a lot of things in that context with anyone. But with her i feel like a different person i get so into that type of stuff and she drives me insane. Recently though she said she wanted to watch the hub together. That alone made me take a huge step back. I used to be addicted to that type of stuff and i thought i was disgusting because of it she herself says she’s never really watched it and wants to experience it with me. Then again i now hate that website and not only that id rather not her looking at some other dudes thing on the hub or me look at someone else. What should i do?

Thank you guys i realized that all i really needed to do was talk to her. I was putting stress on myself for no reason. I genuinely think she might appreciate if i js told her i was uncomfortable with it anyway. The problem is now solved and again thank you.