Yes and no

Both of the twins got on the floor with Yang on either side of her. They both took one of her breasts in their hand and leaned forward, at the same time whispering into her ears "A promise is a promise"

At once Melanie shoved three fingers into Yang's dripping wet pussy while Miltie focused on pleasing both of the blonde's breasts. It felt like the first rain after a drought for Yang. An almost inhuman moan escaped her lips as her walls squeezed down on Melanie's fingers.

"Such a needy slut" Melanie chastized and gave Yang's nice ass a slap, making it bounce

Yang's legs went limp as she was pleasured, only held up by leaning back into Miltia's body.

"So pathetic" Miltia commented on Yang's appearance, relishing in the appearance of the only woman to ever pose a threat to the sisters.

Yang prized hair clung to her face, the blonde being drenched in her own sweat. Her face was covered in her ruined makeup and tears. Hey blue eyes looked so tired, a look the twins thought looked perfect on the girl.

"Please! Please!" Yang screamed, so fucking **** for a climax.

Tears freely flowed down Yang's face, immensely satisfying the twins as they worked on Yang's slutty body. Yang was freely jerking her hips into Melanie's skilled hands.

"Aw does the slut want to cum?" Melanie teasingly asked

"Yes! Yes! Fuck yes!!!" Yang moaned as Melanie's fingers found her g-spot

Sweaty hair clung to Yang's face as her body rocked harder and harder, contracting around Melanie's fingers, the brawler's lungs grew sore due to her screaming as she felt like her arousal couldn't go any higher.

"Fucker!!! Make me cum already!!!!!" Yang screamed

Suddenly the twins stopped.

"W-Why did you stop?" Yang desperately asked

Melanie slapped Yang across the face while Miltia spanked her

"Is that any way to talk to your mistress?" Melanie asked with a glare on her face

"N-N-No" Yang answered, her eyes dropping.

Yang knew what would happen. They would put her in the chastity belt for a week and keep her on edge.

"Aw whore, we're not unfair" Miltia chimed in, giving Yang hope

"We'll let you have your filthy little climax but you're gonna have to do a little something for us tomorrow alright slut?" Melanie asked

Yang tried to think about it but her lust made it hard. The twins could make her do anything but then again they could do the same now.

"Yes mistresses, just please make me cum, your slut needs it" Yang found herself horrified at how she spoke but couldn't linger on how desperately she begged

Hands roughly kneaded her large breasts, pinching her hard nipples while the other set shoved four fingers into Yang's sopping wet cunt, assaulting her g-spot while the other hand rubbed her sore clit. Yang devolved into inhumane moans and thrusting until finally, she came.

Yang fell back into Miltia, blue tear-stained eyes closing. Miltia used her semblance on Yang which increased exhaustion while Melanie used her semblance which prevented satisfaction, in this case, if their slut tried masturbating she would cum but wouldn't get any enjoyment from it.

"Aw did she break?" Melanie asked

"No, just sleeping. My semblance will keep her under until tomorrow night" Miltia told her sister

"Good, I don't want this one broken," Melanie told her sister

"Oh I know, making her our **** is so much better isn't it?"

After locking the bedroom door and moving Yang onto the dog bed with the word slut on it, the twins went to bed.

Credit to Hemelwijs for the idea of the twins' semblance, they make good stuff go read it