I'm just getting started.

"Satisfied? I'm just getting started." you say as you push Phoebe on her back. "Did you enjoy what happened earlier when you dominated me? Time to do the same with Max."

"No way. I will not have sex with my brother."

"You will either follow my orders here out of free will. Or you will be **** to follow my orders in front of entire academy. If there are any differences, you won't get second chance." you tell both of them again. You get behind Max and **** his head in Phoebe's crotch. Then you position yourself behind Max. "If I cum before she does, you will continue this in front of entire academy" you tell them.

Max is more experienced at this than you were. Clearly this is something hero academy students learn. He slowly licks her private parts, bringing her great amount of pleasure. As you plunger yourself deep inside him, he takes it in his stride as he continue to focus on Phoebe.

Soon she is writhing below him and releases all her fluids on his face.

"Hahaha, good job. Now for next round. You like fucking ass, right? Time to fuck your sister's ass." you say as you turn around Phoebe.

"No, you promised."

"I promised not to fuck your ass if you followed my orders. I'm not fucking your ass but I never said that he won't." you hold Phoebe tight and order Max to fuck her. "You can get your reward for making her cum now. Or we can let her fuck you instead." you tell Max.

Max positions himself behind Phoebe. With a strong push, he pushes himself deep into her, crossing final boundaries between siblings. Phoebe screams as he fucks her hard but you muffle the sound with your cock. Once she gets used to Max's dick, you move out of her mouth and get behind Max again.

"Keep fucking her." you order him as you position yourself behind him again and start fucking Max as he fucks Phoebe. Sounds of ass slapping and their screams echo in classroom again. Max is unable to control himself as this socially taboo act brings him more pleasure than he could have imagined. He finally releases himself down her shithole.

You order them both to kneel back again and pleasure you with their mouth again. You take Phoebe's mouth and get her to clean Max's shit off your dick. You fuck both their throats till you are about to cum and then you cum on both their faces. You order them to clean the cum of each other faces once you are done.

"Good job, my bitches. Every time you hear me call you my bitch, you will lower your mental barrier and follow my orders." you add a failsafe for future.