What exactly is the sexual allure of older and old and even very old women which thrills so many men, as Imagefap's galleries and other sites demonstrate? What is it about those wrinkled faces, pillowcase breasts, saggy thighs and swollen, sparsely haired labia that gets we wankers reaching for our cocks and banging off a happy load? The taste for old flesh must always have been there. It is only the arrival of the Internet which has liberated granny porn from the shadows of our sexual psyche and made it seem new. What old women look like when naked was one of the last great sexual secrets until 30 years or so ago. Now, they're irresistable to wankers like me. At least half of my masturbation is devoted to granny porn.

I've been thinking about my own case. I think the first time I was attracted to an older woman was in my late 20s when I started masturbating to fantasies about my first mother-in-law. I surprised myself but the erotic jolt was definitely there. The fantasies continued long after my wife and I divorced but I don't think I ever saw a picture of an older woman unclothed until much later. I remember glimpsing a photograph of a smiling, 55ish, big breasted, dark haired woman naked to the waist in a magazine someone else was reading. It was no more than a tantalising, quick look but it was a wow moment. I wanted more but didn't know where to get it since at the time I lived in a country where porn wasn't freely available and granny porn scarcely existed as far as I knew. Then came the Internet and Compuserve with pictures of nude women in their 40s and 50s, sometimes a little older. About this time, older women mags began to appear on the shelves of news stands in the West when I visited. I plucked up my courage and bought a couple. I'll never forget the expression of disgust on the face of the woman shop assistant from whom I bought my first mag. She'd always been friendly but after that became very cold towards me, a warning that some sexual tastes remained beyond the pale. But I definitely had the taste. I found myself strongly aroused by these mature women, no doubt respected by their neighbours as sensible, conservative matrons, showing off their ample breasts and spreading their legs to show their cunts shamelessly. It was probably about this time that I decided that posed porn with glossy, silicone enhanced bimbo models was pretty uninteresting. I preferred the real bodies of real people (and that goes for men as well as women; I fantasise about men as well as women when I masturbate but never about artificial muscle hunks).

It's routine nowadays for women to look good into their 50s and 60s but how old would be too old? I admit I forced myself at first to look at some of the galleries of women in their 70s and 80s. But not for long. I quickly discovered that the body, no matter how old, never loses its libidinal power. Some very old women have beautiful, shapely breasts that many younger women would love to have for example. But beauty, or conventional ideas of beauty as being slim and sleek, isn't the key.

One of the things I like about porn is the desire of the people who are photographed to show to everyone what they look like nude. It's the reason why pictures of ordinary nudists - who on the face of it are engaged in asexual activities despite their nakedness - are always exciting. What even the most wrinkled granny seems to be saying is here is what I look like in the nude and I want you to see me. They are vindicated every time they make me masturbate. The fact that these grannies retain this coquettery long past the age we associate with sex, makes them all the more exciting - a discovery of a secret and unmentionable area of human sexuality. I know a lot of people think it's weird that a guy of any age would want to masturbate while fantasising that he was having sex with a granny in her 80s and I don't care. That's the sort of guy I am and if I'm a weirdo for seeing a particular kind of beauty and desirability in a body that's past its prime, tough. I've made nude fakes of my most recent mother-in-law and some other women whom I know well, all in their 80s, and get intense pleasure from admiring them when I masturbate. The opportunity to have real sex with them will never arise but if it did, I know I wouldn't hesitate to do it.