Now, initially, that might seem like a very stupid question indeed, but bear with me.
I've never understood why this can't happen, just so long as there's no incriminating evidence for Ofcum and their cronies.
My theory is this: Providing it's what a given caller would like - and the girl on screen is that way inclined - the cameraman zooms in on her head and shoulders. This then gives her the opporunity to pleasure herself without offending any viewers that accidently switch onto one of the 900s when they're looking for their afternoon film on TCM (317). What would be the point of this, you ask? Well for some, me included, the knowledge alone, that genuine arousal is taking place is as big a turn on as seeing a girl ripping her knickers to one side and flashing her gash; the changing expression on her face, the slight movements... viewers would
know what was going on, but without anything being seen, nothing could be proved by Ofcum should they investigate. Dannie (Live960) says she does it occassionaly, but it's never been to the point of orgasm - which is my real desire.
I remember something very similar happening in the old days, when the Prague webcam girls were a feature. There was one girl who used to climb into the doggy position and zoom in on her head and shoulders before some geezer on set came up from behind and started shafting her. Watching her top half being thrown back and forth, the arching of her back and flying hair was a massive turn on - in spite of the fact we never saw anything.
Maybe some of our legal experts (Ian?) could think over my theory and tell us if it's vialble?
Or am I just fantasizing aloud?