I think it is deemed 'okay' because we are still at at stage where society is profoundly grateful, rightly or wrongly, that women can express a healthy even lecherous appreciation for sex. It sort of balances things out. After all, not so long ago, it almost felt like a bloke had to con a woman into having sex, that she wasn't into that, just romance. John Peel the DJ said he was surprised when his brother told him that woman like it too (back in the early 60s) because until then it was felt that there had to be some trick involved.And that cultural attitude almost sort of led to the whole Jimmy Savile sex means coercion stance, and the idea of 'chat up lines' like a salesman's patter.
Of course, you could argue that when I wrote society, I am simply talking about our predominantly male-orientated society.
My point is that, really, Victoria Coren! Enjoys porn, made a porn film, wrote a book about it! Has a chat show on BBC4 and is a Radio 4 type! I really don't think that Paul Merton could do all that and be regarded in the same way, it would be perceived as deeply weird. As I mentioned, some comics can get away with it but must have that alternative, edgy vibe.
It is also seen as less sad when women like porn as sexually they are kind of the source of things whereas blokes are not. Women are the sky, blokes are a comet soaring across it, they just provide the context.
Then again, if Miranda Hart said she liked porn, she probably couldn't get away with it, despite her new sylph like figure, cos she isn't held to be quite so great looking, and not just by a male-based society, I mean women aren't great for the sisterhood either let's face it. So yeah, maybe the 'perception' is simply a reflection of a sexist society.
Spoke to two gals in an office who talked openly about going into a London sex shop. No shame, not sure a bloke would talk that way so openly without getting the tag of weirdo. Ditto torture porn movies, I've only met a handful of folk who have admitted enjoying it, stuff like Hostel 2 and so on and they were all gals, quite foxy ones too. Not like old Myra. Not the slightest hint that there was anything wrong in it from their pont of view, almost like complaining about slapstick cos you see a bloke falling down a flight of stairs and he might hurt themselves, they just see it as a genre. Quite an eye opener from a bloke's point of view, but that's life for you, it never follows the road map the way you think it should.