Schiele, a leading figure of the period and something of an Expressionistic bad boy, created dozens of studies of females in unashamedly sexual positions see the following image as well.
I don't think he used lube, and it's just really tight.
Beckham got in these, and it's not the wife! This black pants belong to none other than Keria Knightly Courtney Love lets it all hang out for our pleasure! Collected here are images from several of his installations as they were being composed.