Bishoujo Dancer Ingyaku Lesson ~Chuunen Furitsukeshi no Tokunou Kojin Jugyou~

Celene was a top ballet school coming into her own with interpretive modern dance.
To fulfill her dreams she became the protege of a genius in the artform, Valdi.

But Valdi had more in mind for the nimble nymphet.

"Your balance is so wrong. You must thrust to me."
"Aahhh...... I can't... it's too..."
"Do you want to be best? This is best way."
"Ahhh! Ahhnn! Forgive me!"

[From DLsite English]