"Your breasts look so beautiful when they bounce, you can go a little faster."

Luis smiled approvingly.

"Like this, it is hitting so deep."

"Ah, it is tearing through."

Hela moaned and swayed, and before long she convulsed once more, welcoming the baptism of her climax, before collapsing weakly into Luis's embrace.

Luis lifted her limp, powerless body, licking her lips as he said, "You have never been caressed after climaxing before, have you."

"No..."

"Then do you prefer your Master to be gentle, or a little rougher."

Two consecutive, overwhelming climaxes had already caused Hela to sink into depravity somewhat.

She had never experienced such intense coupling before, and she was truly coming to understand just how wonderfully pleasurable intimacy between a man and a woman could be.

"However Master wants to fuck me, I will like it."

"Good girl, then tell your Master, which position feels most comfortable when you are being fucked."

Luis toyed with her drenched, mature body, feeling extremely excited himself. This outwardly stern and dignified career woman was actually a secretly seductive and lustful creature. Once her desires were unleashed, she became a true gift for a man.

"From, from behind..."

Hela moaned, her answer slurred and unclear.

"Why from behind."

Luis continued to press her.

"Because that way... it goes the deepest, it feels the most intense."

"Looking forward to the climax from taking it from behind..."

Luis licked her lips, lifting her weakened body up.

Having already achieved two climaxes, Hela had become docile. She knelt down, raising her wet, beautiful buttocks high, supporting herself on her hands as she assumed the rear entry position, trembling as she said, "I am looking forward to it... Master is so amazing, you still have not cum yet..."

The glans was already rubbing against her labia. Luis licked his lips and said, "Actually, you have an even better reason."

"Wh, what reason..."

"This position is just like a bitch in heat, most suitable for fucking a sex slave like you."

The humiliating words were met with silence. Even though Hela was already somewhat lost to depravity, she still could not bring herself to utter such lewd words easily.

"Do you want to experience what it feels like to be fucked from behind like a bitch, to understand what kind of position brings the climax from rear entry."

"I want... Please, Master, fuck your moon slave hard."

"Haha."

His cock plunged in to the root, making her moans ring out again. The room was filled with the sounds of their panting intercourse and wanton, lewd words. The scent of their mingled fluids accompanied the rhythmic slapping of flesh against flesh, becoming the only melody in the room.

For a full half hour, as Hela approached her fourth climax, nearly driven mad, Luis also lost control, releasing his scalding semen deep into her trembling body during her convulsions.

"Ding. Tall, sexy, older sister in law mission derivative side quest, cum inside Hela, mission reward one random blind box, one attribute point."

"Mission complete, rewards have been issued. Please check, Host."

"Ding. A derivative side quest has been detected. It can be upgraded."

"Choose to close this side quest after completion, or choose to upgrade. Please make your selection, Host."

Maintaining their coupled position, lying on top of her, panting heavily, the System's voice sounded in Luis's mind, leaving him momentarily stunned.

He actually had a choice now. It seemed that aside from the main missions, these derivative side quests initially only had one mission objective.

The ability to upgrade involved a degree of chance. For instance, with Avery, it was a mother daughter pair, but here it became a pair of sisters, which created the possibility for an upgrade.

"Upgrade."

"Tall, sexy, older sister in law mission derivative side quest, upgrade in progress. Side quest mission difficulty will increase."

The increased difficulty was understandable. If it were like the main missions, progressing step by step, only involving things like oral or titty fucking, frankly, the mission generation speed would be fast enough.

Then Luis's mission completion speed wouldn't be slow either. One could say that following this training process, he could complete it all in one night.

The side quest missions were relatively more difficult, and the rewards were comparatively lower. They could be used for opportunistic gains, and generally, when issued, they were quite tempting.

"Dr. Hela, have you rested enough."

Luis sat by the head of the bed, drinking water and lighting a post coital cigarette, looking with satisfaction at Hela's flushed body, her breasts covered in his kiss marks.

Her legs were spread wide, unable to close, and her pussy was still twitching occasionally. It was clear that this mature body was experiencing this level of satisfaction for the first time.

"Yes, Master."

After all, she was a mature woman and naturally more resilient. Plus, she exercised regularly to maintain her figure. After resting a while, she pushed herself up and weakly crawled over.

The blindfold was still fastened tightly, leaving her completely blind. Luis took her hand and she slowly lowered herself.

"A qualified sex slave must remember her Master's habits. After cumming, use your mouth to clean up first, understand."

"With, with my mouth."

As a doctor, Hela felt some resistance upon hearing this, and said softly, "Wouldn't a towel be better."

"Haha, starting to resist now that the pleasure is over."

Luis gently pressed her head down, saying, "I don't recall a sex slave being allowed to bargain."

"Lick it clean properly, and remember, don't miss the testicles either."

With Luis's hand guiding her, Hela ultimately yielded. Having already compromised, she hadn't intended to play the chaste heroine.

The four sexual climaxes had already conquered her. The sense of shame in her heart had greatly diminished, and she even felt a secret delight that the decision she made was correct.

This was just to satisfy a man's vanity, not truly engaging in sexual torture. She should be content.

With that thought, Hela brushed her hair aside, took the now softened cock, and began to lick it.

At first, her delicate brows furrowed slightly, clearly suppressing disgust, but gradually, as she discovered the taste wasn't actually disgusting, she began to lick with increasing relish.

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