Well I object to it.
If someone wants to have anal sex and they are not sure how, they can google it. Gone are the days when information was not instantly available at the touch of a button.
What this does is promote it. It's more than just information.
If a woman wants anal sex, great. That's her prerogative.
But most women don't. Most boys do. It is pushed in pornography as entirely normal.
Girls are already under tremendous pressure to have anal sex. There is a study suggesting that it is often a girl's first experience of sex, and as they remain 'virgins', it has that attraction.
'Rosebudding' is a popular porn theme. Continuing to have anal sex with a woman who has an anal prolapse, caused by repeated, often violent, anal sex. Not just sex, but a quite forensic examination of the injury including pouring honey over it and licking and prodding the injury.
Pornography celebrates the violent degradation of women. Anal sex is central to this theme in pornography.
So yeah, writing a guide aimed at 13 year olds however 'informative' is unacceptable.
Girls can find out how to do anal sex any time they like.
The reality is they will be under tremendous pressure to try it and a magazine with their best interests in mind should be giving them tools to maintain their boundaries.
The author of the article calls herself a dick whisper and has also written about BDSM for 13 year olds.
What they are promoting is illegal for half the demographic they are aiming for. And yeah it's unsurprising that the article also makes girls to be non-boys and doesn't bother even labelling the clitoris, the main source of pleasure for women.