"M-make me yours? What are you talking about? If you don't stop soon I'm truly gonna get angry."
Grinning I said while I resumed kneading her full breasts, "it seems you still don't realize who's in charge right now."
I squeezed her breasts roughly once more, making it three of the five I needed.
"You're tied up, alone with no help. Now I'm still playing with these amazing tits, but that's not all a girl has to offer is it?" I said while turning my had to look at her crotch.
Nina instantly realized what I meant and panicked even more.
"Y-you're not seriously thinking about that right?"
"Well it all depends on your attitude. I'm more than happy playing with these tits, but if you want me to move down keep on acting like this."
Nina kept quiet.
"Good girl, now relax and enjoy. I'm sure you'll start to enjoy it pretty soon."
I began kneading her breasts roughly again, while now Nina kept quiet, glaring at me. I just smiled back though as I fully enjoyed her amazing breasts.
In size they couldn't match Layla's but as Layla's were big and very soft, these were firm and elastic. I fully enjoyed finding out the differences between mother and daughter.
Then after completing the first part of the masochism level up mission, I took her nipples between my fingers and while smiling at Nina's nervous face I pinched them hard.
[Nina masochist level up 2 -> 3]
"Aaauuh. I-it hurts."
Even though she said it hurts, from the look on her face I could visibly see, she felt some pleasure from it as well. She was just too embarrassed to say it.
[Side missions - enslave Nina
Your want to acquire your oldest step-sister as your slave has initiated this quest and her disturbing your most important moment in fucking Layla has activated it early. You want to completely dominate Nina and turn her into a loyal sex pet who loves to be punished by her master.
Objective: Have Nina reach 100% obedience and level 10 masochism.
Rewards: A masochistic slave who will obey your every command. The ability to transform Nina into a pet of your choice.
To increase obedience, complete subquest and fully fill the masochism meter
The masochism level states how much she gets off on pain and shame. The masochism meter states how close to an orgasm she is due to pain and shame. The higher the masochism level, the faster her obedience will rise.
(completed) subquest 1: feel her breasts for more than 5 seconds. Reward: 2% increase
subquest 2: kiss her lips. Reward: 4% increase in obedience
subquest 3: see her naked body. Reward: 4% increase in obedience
Current masochism level 3: She feels a mediocre amount of pleasure from pain and shame.
Due to having slapped her ass repeatedly in a short amount of time an additional reward has been granted: Nina's ass will feel more pleasure the more it is hit.
Current obedience: 3%
Masochism level up:
Objective: Make Nina cum from playing roughly with her breasts.
Reward: masochism level 3 -> 4]
"P-please stop it, you're hurting me," Nina tried to beg.
It was to no avail though as I resumed my kneading of her breasts. I now focused more on her nipples though, pinching, twisting and pulling them, making sure she felt both pain and pleasure.
"N-no please stop, aahn. N-no."
In between Nina's begging, moans were beginning to be heard and I played even harder with her breasts.
Nina soon realized what was going to happen as she said: "Please Jake, just stop. We'll forget all about it this. J-just don't continue playing with my breasts."
"I'm sorry but that's not going to happen, not when you're so close to cumming."
"Y-you know?"
In Nina's eyes I was just a twelve year old boy, so she never would've guessed I knew everything needed to be known about sex. But I knew everything after all I was pounding her mother every day.
"Of course, now cum for me Nina. Make sure to show me a loving face."
"N-no don't. I don't want to cum from this."
Smiling I grabbed her nipples and while pinching them hard I pulled, stretching her breasts to the max.
"N-no, it hurts, b-but I'm cummminngg."
Nina's body convulsed as she came from the hard breast play. Meanwhile I just enjoyed her orgasm face.
[Nina masochist level up 3 -> 4, her masochistic side has awakened, she'll begin to accept the pleasure pain can give her. Her sexual interest in you has awakened.]
[Side missions - enslave Nina
Your want to acquire your oldest step-sister as your slave has initiated this quest and her disturbing your most important moment in fucking Layla has activated it early. You want to completely dominate Nina and turn her into a loyal sex pet who loves to be punished by her master.
Objective: Have Nina reach 100% obedience and level 10 masochism.
Rewards: A masochistic slave who will obey your every command. The ability to transform Nina into a pet of your choice.
To increase obedience, complete subquest and fully fill the masochism meter
The masochism level states how much she gets off on pain and shame. The masochism meter states how close to an orgasm she is due to pain and shame. The higher the masochism level, the faster her obedience will rise.
(completed) subquest 1: feel her breasts for more than 5 seconds. Reward: 2% increase
subquest 2: kiss her lips. Reward: 5% increase in obedience. Capped at 5%.
subquest 3: see her naked body. Reward: 5% increase in obedience. Capped at 5%.
Current masochism level 4: She feels above mediocre pleasure from pain and shame.
Due to having slapped her ass repeatedly in a short amount of time an additional reward has been granted: Nina's ass will feel more pleasure the more it is hit. Due to having her breasts played with roughly and achieving an orgasm from it, her breasts will feel more pleasure from pain the longer they are played with.
Current obedience: 3%
Masochism level up:
Objective: Make Nina cum from painful sexual activities seven days straight. (1/7)
Reward: masochism level 4 -> 5]
Seeing the mission progress steadily I was happy. Still seeing that the missions increasing her obedience would be capped at 5% wasn't fun, but seeing that they weren't hard missions to complete I understood the fact.
After checking the updated mission I looked at Nina's face, who was tormented by shame, having climaxed from being groped roughly by me.
As I softly caressed her cute nipples I said: "Let's move on to the most important part of the evening."
Nina didn't even reply as her entire mind was a mess, having just being made to cum from her little stepbrother roughly playing with her breasts, while she was bound.
I didn't care though as I moved off of her belly and sat down next to her. I then placed my flat hand on her lower belly. Instantly I got the message I was waiting for.
[Do you wish to continue and place the slave mark on the target?]
"Yes"
[Warning!
Target does not have slave status and will not voluntarily accept the slave mark. Do you wish to place a forced slave mark on the target? Success will be low and based on target's mental resistance.]
Looking at Nina's face who was deep in thought, having just experienced one of the most embarrassing moments of her life, I looked ahead with confidence.
"Yes"
[Applying forced slave mark]
Nina woke up from her trance as something began appearing on her crotch.
"W-what's going on?"
"Relax it'll be done soon, after we can have plenty of fun together."
Nina gulped as she began to trash around, "N-no stop what you're doing, I don't want it."
[Warning!
Due to target's resistance application of forced slave mark will fail if this continues.]
I didn't think she'd recover from the mental shock that soon, but it was to be expected as well, after all who would want a mark placed on their crotch. Everyone would resist as they noticed what was going ont.
I still had a card left to play though, something which wouldn't fail.
"Stop moving, or I'll upload this picture online."
Nina immediately stopped moving seeing the picture of her lewd cumming face with her bare tits exposed. It was even more embarrassing than the last picture.
"N-no, w-why are you doing this to me?"
Nina complained but her body kept still and the slave mark began to appear on top of her crotch.
It was about the same as Layla's. A heart-shaped tattoo with a J in between. The big difference was, that around it a big lock appeared.
Not long after I got the message.
[Application of forced slave mark succeeded. Target is now in the forced slave state.]
[A target in the forced slave state will obey the master's orders, but the lower the obedience and the more controversial the order the easier it will become for the target to disobey.]
It seemed sex was still not possible, after all her obedience was super low, but like this I could easily train Nina into the perfect masochist slave.
"N-no way, I-I'm a slave?"
The details of the slave mark were made known to Nina as well, courtesy of the system.
"Aren't you happy? Like this we can have plenty of fun. I'll make sure to make you cum a lot."
"W-who would want to be your slave? Make this get away instantly!" Nina said angry again, but this time I had complete control.
Smiling I moved to her angry face as I said: "Purse your lips for me," I said after which Nina immediately did so.
Not waiting around I put my lips on top of hers, giving her a nice sweet kiss, getting 5% obedience in the process.
After sucking on her juicy lips for a bit I pulled back. "Good girl, see now we'll have plenty of fun like this."
Nina glared at me with angry eyes, while a tear once again appeared in her eyes.
"Y-you took it. You took my first kiss. Just wait till I'm free, I'm going to make you pay."
She still acted defiant, so I began to untie her bindings, causing her to be free.
"You're getting cocky huh?" Nina said after being freed from her restrains.
She began to move towards me seemingly wanting to strangle the life out of me.
"Sit down, spread your legs and show me your pussy."
"W-who'd show you that," Nina said as she got in the position I told her too, before lowering her pajama pants and panties showing me a cute hairless clit.