They are on cam just like many nights before, except this night will be different.
She is wearing a new basque that has brought glowing comments from the 100 watchers who are enjoying the view of the new garment and occasionally a glimpse of her stocking-clad legs, slightly parted and her beautiful face when she leans forward from time to time. He is lying back behind her, a hand occasionally appearing into shot as he gently strokes the exposed flesh of her legs and bum between stockings and basque.
She is being playful and teasing as she often does: the occasional wiggle to the music and glancing over her right shoulder, sharing an occasional joke with Him as she reads out the comments left by her admirers. She also occasionally appears to glance over her left shoulder so some of her audience ask why she is distracted but she does not reply.
She sips at her Rose and enjoys the flirtatious attention of the chat in the room and the people from whom she has accepted a whisper request. The watchers do not notice that His hand has slowly crept behind her and gently smoothes her back. If they could see, then they would notice that almost idly his fingers appear to be playing with the lace that holds the basque tight. Indeed, she is so engrossed in her textual conversations that she has not even noticed until she becomes aware that the material is loosening. Of course, the effect is subtle but dramatic: as she involuntarily throws her head back to laugh at a particularly risque comment from an admirer, she does not notice that her full breasts are now pushed slightly upwards in their confinement to the point that they are almost overflowing. The 'room' notices of course but almost as a collective conspiracy they do not let on further than the occasional 'mmmmmm' in the chat. She turns to Him to ask a question and as she turns back to the screen, it is clear to all those men watching that the faintest glimpse of her nipples have now appeared above the top of the basque but, unless she notices and readjusts herself it must be that more will be revealed; quite simply because the nipples themselves are full and engorged and very, very hard. Therefore, it was simple physics. Unless she stayed perfectly still ... which was unlikely, her nipples were going to win the battle with the top of her basque. And that it was happened next.
You haven't asked why they were so hard? For sure, She is turned on by being in front of the cam and having these watchers but tonight was different. She was especially enjoying herself.