Christine was surprised when she suddenly appeared in my room. However, she did not ask me about it.
She probably was still shocked when she felt a bit of my true power in the office. Most likely, she was thinking something like 'This kind of thing must be normal for this monster'.
Well, it's indeed normal. I mean, teleporting was more convenient than walking and using doors.
Once the surprise of the teleportation faded, Christine was filled with nervousness.
Even though she had already made up her mind in the office, now that we were in my bedroom and she could see a king-sized bed in front of her, she could not help but hesitate about her choice again.
However, she gritted her teeth one second later and started to unbutton her clothes again.
When she finished taking off her clothes, she looked at me with an emotionless look.
"I'm ready."
I did not know whether to laugh or to cry.
Girl, is this the attitude to have sex?
Well, it's not as though you like it anyway.
However, I'm not planning to have sex with a doll.
With a sigh, I shook my head and walked towards her.
Then, I held her hand and pulled her towards the bed.
Without giving Christine time to react, I pushed her naked body against the bed and put my face against hers.
With our eyes facing each other at a close distance, I smiled.
"Are you sure you want to do this? This is your last opportunity."
Christine bit her lips and nodded.
"… I am."
I chuckled and smiled softly. Then, I leaned forward and kissed Christine's earlobe slightly.
Christine's body trembled. She closed her eyes and bit her lips. However, her face was slightly red.
To be honest, seeing her like this was very attractive.
And she was even more attractive when I thought about the fact that she is the woman that my brother loves.
I grinned and kissed her earlobe again. Then, I moved my lips down slowly, kissing her cheek, then her neck, then her collarbone, and finally reaching her breasts.
When Christine felt my tongue licking her nipple, her body shivered.
"C-Can you hurry up, please? I want to end this quickly…"
I chuckled and did not reply. Quickly? I'm going to take my time.
Calmly, I extended my left hand towards the place between her legs. I then caressed her thighs gently, finally touching her secret cave.
Christine shuddered briefly before clenching her teeth and looking away.
Apparently, she was forcing herself to suppress the pleasure she was feeling.
And in truth, the place between her legs was rather dry. Although there was a bit of love juice, it was not enough to have an enjoyable round of lovemaking.
If I try to insert my little buddy inside her like this, I'm going to hurt her.
However, I'm pretty good at this.
Slowly, I sent a bit of my mana to the tip of my fingers. Then, I used it to touch the slit of her cave.
Christine's expression changed immediately. Involuntarily, she let out a soft groan.
Her face quickly turned red, and her eyes were filled with shame. She hurriedly avoided my gaze and did her best to feign that nothing happened.
Unfortunately for her, that was just the start.
Slowly, I used my left hand to caress her slit, playing with her clit and touching her thighs gently as I stimulated her body.
At the same time, my mouth started to suck her breasts, licking and biting her nipples tenderly and making Christine's body shiver in pleasure.
The two-pronged attack was too much for an inexperienced girl that had zero experience in sex.
Before long, her mouth opened again, letting out a small but sexy moan.
Christine's face turned even redder. The expression of shame on her face was so adorable that I wanted to take a bite of her.
Love juices had started to leak out of Christine's vagina. Right now, I could feel the sticky liquid coming from her secret cave wetting my fingers.
I grinned and continued playing with Christine's body, using my thumb and index finger to pinch her clitoris as I nibbled her nipple softly. Then, I once more kissed her neck, making Christine twist her body and groan in embarrassment.
However, her embarrassed movements seemed like an aphrodisiac to me. Every time that she moaned softly or twisted her body, I desired even more to own her.
Eventually, Christine's moans became more recurrent. She did her best to stop them, but the pleasure running through her body made it impossible to stop the moans.
"C-Claus…" Christine looked at me with a pitiful expression as though begging me to stop this torture. However, I just smiled.
Then, I accelerated the movement of my fingers.
Immediately, a powerful stimulation hit her entire body, making her body shiver.
"Ahn…"
Christine arched her body up, and her legs trembled. Then, a huge amount of love juice gushed out of her cave.
Just like that, Christine orgasmed.
After that, the auburn-haired girl panted softly and covered her eyes with her arm, wondering in her mind if what she was doing was right.
However, she knew that it was too late to turn back now.
Seeing her expression, I brought my face towards hers and breathe in her ear softly.
"How was it? It seemed like you enjoyed it."
Christine glared at me and snorted.
"I think that you are scum. It's obvious you have a lot of experience! I wonder how many girls have you slept with to become like this."
Hey, were you trying to insult me just now?
It felt like praise instead.
"I know that I'm a scum, and I don't think change either."
After these words, I snapped my fingers to take off my clothes with a spell. Then, I looked straight into Christine's eyes as I positioned my member in front of her cave.
"You know, you are very beautiful."
Christine was dumbfounded by my words. But before she could react, she felt a sharp pain in her lower body.
"It hurts!" She gritted her teeth and murmured with a frown on her face.
I smiled softly and caressed her cheek.
"Don't worry. It will become better soon."
Then, I started to move my penis softly, up and down, right and left, while using my mana to stimulate Christine's vagina.
Thanks to that, the pain that my beautiful sister-in-law was feeling quickly started to fade away, replaced by a strange pleasure.
This pleasure was something completely different than anything that she had felt before. It was as though her entire body had turned thirsty and filled with desired to get even more pleasure.
Involuntarily, my beautiful sister-in-law tightened her vagina, making me hiss in pleasure and look at her with a smile.
Mm, it looks like it's time to continue.