No, not me – sorry. But here’s some mainstream information on it:
The article (in Salon) is worth reading. Here’s an interesting excerpt:
The Zagreb team found that about half of women (49 percent) stopped their first experience of anal intercourse because it was too painful to continue – not surprising considering 52 percent of women report not even using lubricant when they first had anal sex! An additional 17 percent of women also experienced pain or discomfort during their first anal sex, but didn’t stop their partner. Only about one-quarter of women said their first experience with anal sex was pleasant.
That said, nearly two-thirds tried anal sex again (hopefully this time with lubricant), continuing on another occasion. Those women who found it positive, pleasurable and pain-free were more likely to try it again. About 9 percent of women who had anal sex at least twice in the past year said that they experienced pain every single time. Based on what I know about women who experience pain during vaginal intercourse, my guess is that chronic pain during anal sex is even more common – perhaps hovering in the 10-15 percent range – once the women who actively avoid it because it always hurts are taken into account.
Anyhow. The whole article is worth reading.