Tits on glass
From Voyeurweb's Wiki about Sex
Tits on glass is a standard erotic pose:
She stands behind a window or shower wall and presses her naked tits against the glass while photos are being taken from the other side of the glass. Depending on the applied pressure, her tits look flattened. Quite often this type of photo is combined with a girl taking shower photo! A similar type of photo is the ass on glass pose!

