The girl in the logo is a hang-glider. The Sumerian goddess of hanggliding, Shmooprah, is the guardian saint of porn´actors since the Ubaid period ca. 4.500 BC.
As a lazy designer I understand that not every logo got to have some meaning it just got to be *something* recognizable. btw, it reminds me of baseball and nba league logos.
of course, updated london olympics logo is much more cool and suitable for adult site, but not everyone have got 400.000 euros to pay for logo design
The woman in the logo looks like she's either practicing for gymnastics or getting ready to dive. Also, she could be doing that Rose thing from Titanic at the bow of the ship. It's interesting that her left arm is in a slightly higher position than that of her right arm.