She must join your order

You beckoned both Supergirl and Scarlet to follow you to the home Scarlet had procured for you. You could tell that Supergirl was both aroused and nervous by what may happen, but in truth very little didn't get her aroused now. During the entire trip in the back of your limo (courtesy of your new company), you could see her writhing in her seat. It was so fun that you almost wished that the trip back to your house had lasted longer, but the short trip was also a relief as you strained not to shoot your load early.

When you entered inside you walked into the living room, Zatanna had remade this room to be a somewhat throne room. A bit egotistical to be sure but it wasn't your own idea but rather the idea of your favourite **** Zatanna. She along Diana and your driver Scarlet were also in the room. While Supergirl was stunned into silence, and then stunned by the sight of Zatanna, with her new enormous breasts.

"Do you like them?" you ask with a smirk, seeing that her eyes was all but glued to your buxom **** girl.

"When Zatanna, what?" she stammered.

"Master wanted me to have bigger tits Kara in order to please him, it was of course my duty to obey" answered Zatanna just like a proper toy.

"Wait Zatanna, Diana, what's going on here?" She finally asked.

"Kara we've haven't been truly members of the JLA for at least a year but rather master's personal sluts" explained Diana "and now we want you to join us in order to help Master enslave the world"

"What? Why? Why would I ever do that" she stammered angry.

"Because Kara as long as you remain one of my personal slaves I'll have Zatanna give you the tits you really want" you explain, barely holding in laughter as Supergirl's face flushed in arousal and embarrassment.

You delighted in seeing the struggle in her face, how her eyes would consistantly flash towards Zatanna's tits.

"What? What would you want of me?" She asked visibility scared.

"Your loyalty and allegiance to my plans to conquer the world" you say "and you will be my own personal fuck toy"

"Fuck toy" moaned Supergirl her hand rippling between her tits. Then she snapped out of her reverie "you want me to betray the Justice League?"

"Yes, and your cousin. You'd do that right? After all your ultimate wish has always been to become the ultimate ****. And I'll accept the task to be your master. And in exchange I'll permit Zatanna to give you bigger tits. Oh and Diana make sure she's sincere" you say with a wicked grin.

As the lasso of truth wrapped around Supergirl and began to glow you could see the conflict race through her mind. The idea that she would even consider betraying the justice league and selling herself into slavery just for bigger tits was enough to make your dick grow as hard as stone. You were becoming very interested in her response