Gabriella getting punished

It was Gabriella. She was bound by her wrists to a beam of the ceiling, her position forcing her to spread her arms in a Y and touch the floor only with her tiptoes. She was wholly naked, her perky breasts, smooth belly and blond bush largely displayed. Olivia stood in front of her, a whip in her hand. Judging from some red trails on Gabriella's slender body, and the tears drying on the ****'s cheeks, she had already used it several times. In a corner of the room, Martha watched the scene, apparently impassive.
Olivia, her face impenetrable, turned for some seconds around Gabriella's hanging body, seeming to ask herself which part of the tender flesh she would lash. The **** girl followed her movements with fear in her eyes. She closed her lids when the mistress raised her arm, then shrieked when the whip imprinted a red mark across her belly.
"Do you regret what you have done, ****?" asked Olivia in a severe voice.
"Yes, mistress," Gabriella sobbed.
A new lash, on her soft flank.
"Will you ever take again what belongs to me? The General is my game, not yours! Did you forget it?"
New, more and more violent lashes punctuated every sentence. "I'm sorry," moaned Gabriella, her voice almost stifled by tears. "Everything was my fault."
"Did you at least take your pleasure?" A new lash scared her breasts, then Gabriella nodded, obviously now unable to speak. "Did you enjoy it? Was it more important than your mistress's pleasure?"
Olivia seemed to have lost every control upon herself. Lashes showered wildly on the unfortunate servant, who squirmed vainly in her bonds. A worried look in her eyes, Martha obviously now asked to herself if she would interfere, to avoid Gabriella being irreparably wounded.
Till now, nobody had seen me.