Sodomizeher, to me your post was too classical old porn school orientated. Like those girls climbing a ladder of so called perversity (sic!) from solo nude to dp. But these days are different and if we fans dont demand clearly what we want to see as fast as possible too many girls, agents and directors stay behind and dont adapt. It doest happen if we dont ask for it!
With todays very short careers there is no sense building something up, just shoot those girls while they are fresh and shoot the max with them!
Giorgio Grandi did a great thing proposing them a 3 scene package of dildo, anal fist and dap in Piter as soon as they entered porn.
This didnt use them up fast, but prepared the girls for all kinds of porn on a fast track allowing them to maximum cash on their talent. Some of them persued that track, some got softer later. But we fans have at least one max performance with all of them.
For Jessica Lux I feel she lost too much time career planning in porn.