Turandot was an opera with many characters. The Nutcracker Pas de Deux is a ballet piece for two dancers, and it is structured for two performers. The music itself is very repetitive and what saves the NPdD in any way as a performance piece is the emotional interaction between TWO people. With one performer, the drama palls and the constant repetition of the same phrase of music becomes monotonous. JMHO.
The lady kind of had jet black hair and she wore it in a bun. She was exciting to look at. Maybe it was Pairs but that I would have remembered. I think.
But there is another Pad de Deux in Nutcracker which ends the First Act as Clara and Toy Soldier are led into the Land of Sweets. (Oh how I hate that ballet!). Maybe that's the one Sasha is using.