As they explained themselves on their website, Beautiful Agony, facettes de la petite mort, is :

dedicated to the beauty of human orgasm. This may be the most erotic thing you have ever seen, yet the only nudity it contains is from the neck up. That's where people are truly naked.

So you won't see any sex, fellatio, penetration and so on ... just expressions of the face.

Very nice !

The official website : http://www.beautifulagony.com