Yes

Joker had left her uncaged, Batgirl had nowhere to run...not that she would want to anyway. He was extremely pleased with the progress that they had made. Batgirl was reaching the tipping point of her transformation, she just needed a few more nudges...or thrusts. He was enjoying himself more than anytime he had ever recalled. Harley never put a big fight when he had turned her. Batgirl's struggles would make his victory extra sweet. Joker had left Batgirl wanting long enough though, it was time to strike while the iron was hot.

Joker entered Batgirl's room. She was awaiting for him like he had order previously, on her knees and face down. He could tell that there was a different air about her though for this session. She appeared to be glowing with excitement. She was almost broken.

"How may I serve you, Master J?" Barbara was saddened that those words were getting easier and easier to say. Nevertheless, she was unsuccessfully trying to mask her enthusiasm.

"Well my dear Harley-Bat, it looked like you were enjoying yourself quite a bit last night." Joker wanted to rub Batgirl's humiliation in her face as much as possible.

"I only gave in a moment of weakness...Master J."

"Oh no, my lovely Batgirl, I believe you want me now. I think the serum is getting too strong for your will to resist, not that you want to resist anyways, especially considering that you have vowed to do anything in exchange for an orgasm at my hand."

Batgirl's face turned bright red.

"Ah, so you want another one do you? Are you ready to take it further? You have been quite cooperative so far. All you have to do to get my cock is beg for it. This will not be a request derived from any stimulation either, I will not **** it out of you Batgirl. Just let me know, on your own free will, that you want your master's cock like that dirty little Batslut that you are."

Batgirl didn't know want to do! How humiliating for her to admit that she wanted the Joker! She couldn't **** herself like that, but deep down she was yearning for Joker...