While the dominant in the background seems to be simply thrilled by the submissive's hands free serving tray / nipple clamp combination, I'd actually like to wipe that silly grin right off of his face.
What self respecting dominant goes to all that bother, with maid costuming, lovely dark custom serving tray, not to mention the red nose ring leash, only to spoil the whole scene with the terribly ugly plastic soda pop bottle?
I wouldn't be surprised to discover he also serves his guests wine from a box . . .
A substantial glass tumbler with an iced drink would have been far more appropriate, perhaps something like Chivas Regal on the rocks. Or maybe a nice Bacardi and Coke, if a mixed drink were more to his taste.
If a heavy tumbler and ice would have been more than this girl's tender nipple's could bear, I'd suggest the alternative of a simple glass of wine. If her limits allowed, I'd even like to see the wine bottle on her tray, along with the glass, and of course a corkscrew!
For my eye, the best option of all would be for the tray to hold a delicate champaign flute, filled and waiting for Master to toast her submission, and perhaps even her talents.
But for God's sake, a plastic soda-pop bottle?