It was by Erik Elsas, circa about 2006 if I remember correctly.

The model had long dark hair and looked to be playing in a river in what looked like a fitted black maxi t shirt dress. There were only two pics that I remember seeng:

1. The model standing on what looks like a rock and the dress is already soaked from the waist down at the very least, she's looking down.

2. The model is kind of laying perched against some sort of rock looking up with her eyes closed like she's mid orgasm, dress is now soaked, don't recall how much of it is submerged.