Use Diana's weakness

"It was a nice start. You are a fine specimen, Amazon"

"I won't let you win, god of war," she whispers. "My mother will find me..."

You smirk, stepping closer. "Your mother will never find you. No one will," you say, grabbing her chin. "I got tired of wars. Men should be more interested in taming women than killing each other..."

Your hand slides to her breasts, squeezing one of them. "I'll show you that men are superior and that Amazons are wrong about everything. Women are only good for two things: Breeding and being fucked..." You pause remembering that Ava is listening. When she was mortal, she was always quite a feminist and would kill you for such words. Yet, nothing happens. So you continue "But some of them have the talent to be trained to be even better at serving. You are such a woman. Themyscira is not your home anymore. This cave is. Your name is not Diana anymore. It is now Wonder Slut and you are my personal fucktoy. And you will learn to love it, to crave it..."

The woman in front of you tries to bite you again but you stop her by slapping her hard across the face. She flinches but doesn't say anything. Her eyes are watery, she seems frightened and yet tries to hide it behind an angry expression and struggle.

"I like that you understand words like fucktoy and slut. I was afraid that being isolated among Amazons made you ignorant." You smile darkly "I remember now. You have read certain books... Well, you will need what you learned from those. And much more. Is the word blowjob also familiar to you?"

"Never! I won't do it!" She hisses venomously.

You grin at her defiance. Such spirit will make breaking her even more satisfying. You feel yourself hardening again as you think about all the ways you can use this divine slut. Your cock, which is still dirty with her virgin divine blood and juices, throbs eagerly, ready to violate her again. But you need a way to make her do it, to follow an order. **** is too simple, too straightforward

"Should you misbehave, I will bring dozens of innocent random maidens here," you say calmly, watching how fear appears on her face. "I will **** and **** them for days before your eyes. It will be your fault, your responsibility. Do you want this? Or do you prefer to obey and learn?"

She stares at you in silence, weighing options carefully. Then, her full lips slowly part. "My answer is no. You won't get anything except what you can get by ****."

Before you can answer, you hear a thud behind your back. The Amazon stares at something behind your back prompting you to turn around. It is Ava in her usual perfect body. But young-looking, wearing a cute white nightgown, with hands tied behind her back and a ball gag in her mouth. She has an expression of fear and confusion on her face, she looks like a teenager who got yanked out of her home.

"Ravage me. I'll play along. I had no hard fucking for a long time.", Ava's chuckling voice manifested itself inside your head.

Ravaging your omnipotent girlfriend in front of another woman seems weird. You ask yourself what if you go too far and anger her? She can poof you out of existence for one wrong word or action. On the other hand, she can always do it on a whim. anyway. She can also stop you anytime and fix any damage you cause. And It sounds hot. And you need to get used to both dangers and advantages of having Ava.

"See the consequences of your choice, Diana," you turn to your captive. "I will enjoy this girl. I will make her suffer. And it will be your fault."

"Wait, wait!" Diana exclaims, desperation clear in her voice. "I will... I will try to follow your orders."

It is an intriguing proposition you are tempted to take now. Your superheroine toy may change her mind later but Ava has her needs, too. Despite the terror on the face of her avatar, you have no doubts that she wants action.