Livre d'Or

Yes, this. And that if part of the reason that guys' kneejerk reaction is "NOPE, THE WORST, WHY WOULD YOU EVEN THINK THAT" is because *they* find receptive anal sex shameful, MAYBE THEY SHOULD CONSIDER THAT IT MIGHT NOT BE JUST THEM.

Incidentally, while no one *has* to be into anything, at least some reciprocity in this area* is a pretty decent indicator that the guy in question is actually into anal play because it is fun, rather than as part of a non/dubiously consensual power trip**, which is what these guys seem to be describing.

* Even at the level of "I tried it awhile back, not really my thing" or "yeah, I will if you're into it, but that's not what I'm really into"
** People get to be into this. Far too many people confuse this with getting to actually act it out; see the "getting her to give it up" trope.