How to properly eat a girl out

Once again, Yang woke up on the cold floor, nudged by Melanie's boot.

"Who do you serve?" Melanie asked

"I don't serve anyone" Yang replied which got her a kick in the gut.

As Melanie walked off, Miltia came over and kissed the spot where Melanie kicked before kissing Yang on the mouth. To both their surprise Yang returned this kiss this time.

"Melanie is crueler than she needs to be but she's trying to help in her own way. We've got something planned today so you can be better equipped to please us" With a sad look in her eye Miltia added "I don't want you to be in that chastity belt" she then gave Yang a kiss on the cheek and went onto her business.

Yang just sat there, thinking about stuff. Were her friends looking for her? Why was Miltia being so nice? And why did Yang kiss her back? Why did she have to mess up and end up in this stupid belt? Was she really that much of a failure?

Yang instantly tried to shake that last thought out of her head. There was nothing wrong with her, the twins were just demented. Right?

Into the bedroom walked the twins with another woman. This woman had short white hair, easily towered over Yang, and was almost as buff as the blonde. Her bust wasn't anything special but Yang had to admit she was really sexy.

"This the bitch?" the white-haired woman asked

"That's her" Melanie responded

The white-haired woman approached Yang and grabbed one of her breasts hard, eliciting a groan from the blonde.

"What's your name?" she asked

"Y-Yang" the blonde moaned

"I'm Lazuli. I'll be your trainer for today. Now, on your knees"

Yang felt so many conflicted feelings it was hard to reason that if she refused the twins would make her suffer in some way or another. The blonde sank to her knees and nervously looked up at Lazuli.

Lazuli slipped off her jeans and panties and sat on the edge of the bed, then spread her long legs to reveal her core.

"Get to it slut"

Hesitantly Yang leaned forward and began to pleasure Lazuli. The blonde roughly ran her tongue over Lazuli's pussy. The good taste got Yang to work a little harder which gave her a smack on her ass, eliciting a shriek. Yang looked up and saw Lazuli holding a riding crop.

"Put your tongue in me, don't just lick me. Do I look like a damn lollipop to you whore?"

Yang inserted her tongue into Lazuli's pussy as ordered. In a clockwise motion, Yang ran her tongue around Lazuli's inner walls, as if licking her lips.

"Hey!" Lazuli chided with another smack of the riding crop "Don't get lazy. Your tongue needs to go deeper if you want to get me off"

Smack after smack after smack assaulted Yang's ass as she fruitlessly tried to get Lazuli to climax, her tongue being familiarized with every inch of the woman's pussy. By the eight hour mark, Yang was crying tears of frustration. Frustration at not being able to make Lazuli climax.

"You look so pathetic when you cry" Lazuli moaned

Yang's technique had definitely improved but was still not good enough to make Lazuli cum.

'M-Maybe they were right. How useless am I if I can't make this chick cum however long I've been here' Yang thought

By the eleven hour mark Yang felt like she was going to pass out from her sore her tongue was, she could barely move it at all.

"Yes, good girl, almost there" Lazuli cried out

Then finally it happened. Lazuli squirted all over Yang's face and in her hair.

"Good slut. I think you're ready for any girl now"

Yang didn't hear the compliment. On the floor, the blonde passed out, utterly exhausted with tears and cum staining her.

"Well, that's to be expected. Oh well, time to get my paycheck"

Lazuli left the room, leaving Yang alone and used.