@anda,
It's no big deal.
Are you hurting anyone? Are you consuming obvious child porn (which means you would be providing profit for human trafficking—yes, even if a site is free, because the owners of videos on any site can get $$ when their stuff is popular)? Are you upsetting a loved one with your actions (I don't mean, perhaps, parental disappointment. I mean more like if you have a boyfriend or girlfriend who asked you not to, but you're doing this anyway)?
If you just said 'no' three times, then I wouldn't worry if I were you. People have urges, desires, curiosity, etc. Every bit of that is perfectly normal.
And not looking is normal, too.
There isn't just one way to be a woman, or a human being, for that matter. You and your friend are both normal, and if she's trying to tell you that it's her way or the highway, well, this is where the expression
you do you comes in mighty handy.
And not for nothing, but you are under no obligation whatsoever to share this information with other people. No matter how they ask. You can keep this kind of stuff to yourself. This is not to shame you. It's that you should assert your privacy rights on occasion. Not everyone has to know everything about you or how you spent your weekend.