But Boys are not under pressure to have something inserted into their anus.
Exactly. I do think this is key. Anal sex pornography is purposely designed as rather damaging. Damaging a woman's body in order for the man to get aroused.
We're not talking about a sexual mechanism that is intrinsically arousing.
Otherwise we would be doing it to (straight) men just as much and it would be portrayed as such.
This is the reason why people are sceptical. Because they know how it is portrayed. And why.
I can't remember the name of the study. But it was on youngsters. It showed that the overwhelming number of girls did not want anal. Which is unsurprising. But the real kick was that the overwhelming number of boys who knew that but wanted to pressure them to do it anyway.
And now Cosmopolitan is complicit.
I would far rather see an article showing girls how they can maintain their boundaries with confidence. Give them the language to say no with assurance, rather than fear or worry.