Shock her again.

You lean in closely and give her a kiss. She kisses you back hard. She is desperate for relief. She pleads for mercy within your lips. You withdrawal your tongue and watch your cock slowly emerge and disappear repeatedly within her fat cleavage. She sobs up at you, but deep within her you recognize a growing arousal. It has been so long since she has submitted. She needs to please you even with her suffering.

Her eyes grow wide at the recognizable sound of her buzzing clitoral augment rearming for another electric strike.

sssssssiiiiiiiiiiiizzzzZZzzZZLLLLLLLLLLLE... CRACK! CRACK! CRACK!

She convulses on her knees as you force the augment's punishment to remain active for several moments. Her breath catches and the lean muscles within her limbs go rigid.

Finally you deactivate the punishment shocks. Her body goes slack but she remains on her knees. Her chest rises and falls with big deep breaths. Submitting to her punishment during her tit fucking has only increased her need to cum further.

"Pleeeeease... Master..." she gasps weakly up at you.

"PLEASE WHAT, SLAVE?" you boom. The pace of your thrusting into her swollen chest increases.

"Please.... May... this... slave... cum for you, Master?" her voice quivers in excitement and fear.