AITA For asking my friend to delete her pictures on discord?

Hi! I’m 24F and have been friends with this girl we will call Joe for about 6 years. We used to be best friend but we have been kinda drifting as just some people do. Now onto the topic, I run a 18+ discord server that is completely SFW. We have a channel for members to share selfies and it’s always sfw as well.

I have never had any issues with any one breaking this boundary except her. Last night she posted two pictures of her self, ( to preface she is wearing a bathing suit top, the straps are really thin straps, it hangs lower but is like a shirt or tank top ig and short jean shorts) In the first picture she is facing the camera bending over slightly and arching her back. The second picture she is facing away from the camera with her hands under her butt.

While we were in a voice chat I made a comment about the pictures not really being appropriate so she deleted them and posted another one of her standing straight showing of the fit. I thought everything was fine but she then proceeded to tell me that I only said what I said because she has big boobs and said “If I had a smaller chest would you have still said it was inappropriate?” I said absolutely, your size in chest didn’t matter, it was how you were posing bro like what?

Now it’s the next day and I love my friend so I’m starting to overthink was I being rude? She is very beautiful and I love her and wasn’t trying to offend her in anyway. Am i the jerk here? This isn’t friendship ended or anything I am just starting to feel bad after her comments

TLDR: My friend posted pictures that I deemed inappropriate, but she is accusing me of only thinking like that because of her chest size, am I the jerk?