(Kaito's POV)
"O-Oh...." Maki said as I had kissed her lips briefly, "Kaito...."
I was standing behind her as we were near the wall, embracing her by the waist and holding her firmly against me.
I ran my hand up to her breasts, gently groping them as I kissed her lips again, "Maki." I said as I kept kissing her, "You're....."
"I'm ready, Nii-san...." She said softly, her voice was almost a whimper, "Please....."
I nodded, kissing her cheek, "Are you sure?" I asked, "In this position?"
She nodded, "Yes...." She said, leaning on the wall, "I don't mind."
I ran my hand down her back as I held her waist, my cock was already rubbing against her ass. The sight of her backside was quite an alluring one, especially since she was nude.
She was looking at me while blushing deeply, "Give it to me...." She said, "I can take it....."
I nodded, "Alright." I said, "Here I go..."
I rubbed my cock against her pussy, feeling her body tremble in response to this. She let out a soft moan as she shifted in her feet.
"Hm~" She said, biting her lip, "Oh..."
I gently inserted the tip, feeling how her pussy immediately sucked me in. Her body tensed up slightly as she leaned her head back.
"A-Ahh...." She said, trying to restrain herself
"You alright?" I asked, gently rubbing her waist, "Hm?"
"Y-Yes...." She said softly
"Loosen your body." I said, "Let me enter you all the way."
She nodded, "O-Okay...." She said softly, "Sorry... "
"It's okay." I said as I pushed my cock a bit deeper into her, "Just like that."
Her body relaxed and I felt the way her pussy clamped down onto my pussy while I went all the way inside. I felt the way it wrapped tightly around me, molding itself to the shape of my cock. It was a good feeling, one that was making my body feel numb.
I couldn't believe that this was happening; I was inside my other sister. Having sex with Mai was something unexpected, I never thought it would happen. But to think that I would also have sex with Maki, that was something that came out of a fever dream.
"A-Ahh~" Maki let out an arousing moan, "K-Kaito~"
I held her by the waist with both hands, "I'm going to move now." I said, "Okay? You're doing good, beautiful."
She looked at me while blushing deeply, "O-Okay..." she said, "Y-You complimented me."
"I did." I said as I began to move my hips, "You're beautiful, my sweet Maki."
As I thrust my cock into her, I felt the way her pussy was coiling tightly on my cock. Her body began to bounce back and forth with each thrust; it was an alluring sight.
"Plapplapplapplapplapplap!"
"A-Ahh~" She moaned, "Ohhh~"
I ran my left hand down to her ass, gently groping it as I began to pick the pace up. Every thrust caused this beautiful body to bounce back and forth. I could feel the way her insides got tighter, my cock was grinding against the wrinkles of her pussy.
"Hmmm~" Maki let out a loud moan, "Ohhh~!! K-Kaitoo~"
"Yea?" I asked as I leaned down and pressed against her, embracing her from behind, "What is it, Maki?"
"Y-You feel so good~" She looked at me as tears formed in her eyes, "Ohhh~"
I wiped her tears away, "Yea?" I said, still thrusting into her, "You're feeling good?"
She nodded, "Yess~" She bit her lip, "Ohh~"
I kissed her lips, "I'm glad." I said as I ran my hand up to her breasts, "I am glad you're feeling good."
"I-Is my pussy good?" She asked me, trying to restrain her moans, "O-Ohh~ Is my pussy good enough for you?"
I kissed her shoulder, "My sweet Maki." I said, "It will always be good enough."
"H-Hnnghh~" She moaned, "I fucking love you~~ A-Ahh~ I don't want anyone else, Kaito.....I.....O-Ohhh~ I want you....ahhh~"
"Oh my~~" Naoya said, "Getting some cock in her made her true feelings come out."
"Maki is just like me..." Mai said with a gasp
"A-Ahhh~!!" Maki moaned as I Kept thrusting into her, "S-Shut up, you two!"
"Shh...." I said, gently pinching her nipples, "Don't listen to them, focus on me."
Her pussy clenched hard onto my cock, "Ahhh~!!" Maki moaned, "D-Don't do that to my sensitive-....Ahh~"
I kissed her neck, "Hm." I said, thrusting into her, "Your pussy feels amazing.....I cannot believe that I am a degenerate, to feel how good my own sister's pussy is."
"Y-You're not....ahhh~" Maki moaned, "Ohhh~"
I leaned away, grabbing her hips and began to thrust into her a bit harder, "You have a sturdy body, Maki." I said, "You can handle this, right?"
"PLAPPLAPPLAPPLAPPLAP!!"
I thrust into her a bit harder and faster, feeling how my cock was rubbing against her insides. Her body was bouncing back and forth rapidly as her cheeks were clapping loudly. Her pussy was feeling so good that I couldn't hold back, having already been this aroused by her blowjob.
"Ohhh~!!!" Maki moaned, "Y-Yess~ Nii-san, for you.....I....can take anything~~!!"
I kept thrusting into her, "Maki...." i said, "I don't know if I deserve you...."
"Use me however you want, Nii-san~!!" Maki moaned, "I want it all~! Give it to meee~~!!"
"Are you sure?" I asked her as I kept pounding into her,
"Very well."
*********************
Maki was lying face-down on the bed, her body trembling in pleasure as her leg was twitching. Her face was pressed into a pillow as she was still moaning.
I ran my hand against her beautiful and sweaty back, "You were able to hold out for this long, huh?" I said, "Well done, my girl. I am proud of you."
She didn't respond; her hands were twitching slightly as she tried to move. I leaned toward her head, turning it slightly to make sure that she was okay. Her eyes were filled with tears as she smiled slightly.
"Ahh...." Her voice was soft, "K-Kaito....."
I kissed her cheek, "Good girl." I said, "You did well."
She nodded slowly, her body easing down, "I'm so tired...." She said, "You....you were so intense...."
"I'm sorry about that." I said
"N-No...." She said, "It's okay.....I enjoyed it."
I had my hand on her butt, gently rubbing it, "Hm...." I said, "You know, this is a line we can't uncross."
She shook her head, "I don't care." She said, "I'm happy with this decision."
"I see." I said as I noticed Mai and Naoya walking up to us, "We have to keep this between us, then."
She nodded, "I see."
"You done, big boy?" Naoya said with a smug tone, "My turn."
"N-Naoya, I'm up next." Mai said, blushing deeply, "You've had him for years, Maki and I need to catch up."
"Huuuhh?" Naoya scowled, "But I want dick now!"
I sighed, "Alright." I said, "Don't start a fight."
"I can do you both if you want."