What we wrote on March 9, 2012: We just stumbled across the works of Juan Francisco Casas, a Spanish artist who creates these fantastic nude/sex scene'd drawings with only a Bic pen. Casas captures his models in a consistent backdrop: bed, showers, or taking pictures... you get our point here, there is going to be some nudity in these drawings. Just enjoy the skill, if you will. (via)
As stated on his website, Casas' work is represented in major collections including the Museum Artium or the ABC Museum and in private collections around the world.