(Kaito's POV)
"Hnnngh~" Mai's body trembled violently as I felt her climax all over my mouth, "Anngh~~"
I pulled way, feeling how her juices were dripping from my mouth down to my chin, "Hm...." I said as I wiped some of them away, "Mai...."
"Ohoho~" Naoya chuckled, "Already? Oh boy, that was rather hot~"
Mai was panting, "K-Kaito...." She said, "S-Sorry..."
"It's okay." I said, licking my lips, "You're okay."
She was looking at me while blushing, her eyes were filled with desire and need. I looked at her body, it looked quite beautiful to say the least. At this point, having already orally pleasured her, the line was already crossed. There was no need to feel guilty or skeptical, I have already made her cum.
I leaned down, patting her cheek, "Do you want this?" I asked, my eyes staring into hers, "Mai."
She nodded, "Yes, Onii-chan...."
I kissed her on the lips again, feeling how her body jumped up slightly. She kissed me back, her hand reaching for my arm. With that free hand, I grabbed her hand and interlocked my fingers with her own. I kept kissing her, my tongue wrapping passionately around hers as we held hand, my other hand running from her cheek down to her chest, gently grabbing her breasts.
"Hmm~" She moaned through our kissing, "Mmm~"
I pulled away, feeling her grip on my hand tighten, "Mai..." I said, gently groping her breast, "You're beautiful."
She blushed even more, "T-Thank you....."
"Go on~" Naoya said, "Continue~ Just like this~"
I nodded, "Fine...." I said as I began to take Mai's bra off, "If this is what you both want, I have no choice but to oblige."
I took her bra off, exposing her beautiful breasts. Mai tried to cover them but I grabbed her arm, gently pulling it away.
"Onii-chan....." She started
I leaned down and kissed her nipples, feeling how her body trembled in pleasure. I then licked them a few times before sucking on them gently. Mai's moans filled the room as she gripped my hand tightly, her body trembling.
I ran my hand down to her crotch, rubbing her pussy and feeling how her body was shuddering in pure bliss. I kept sucking on her breast, completely overtaken by the whim of pleasure. Her entire body was shuddering in a good way, responding nicely to the pleasure.
"Mmm~~" Mai's moans were escaping her mouth, "Ohhh~"
I pulled away, feeling her pussy up with my fingers, "Are you ready?" I asked, "Mai...."
She nodded, "I am." She said, "Please...."
I sighed and leaned back, positioning myself better between her legs. I rubbed my cock against her pussy, feeling how her juices were overflowing and drenching my shaft.
"Fufu~" Naoya licked her lips, "Good boy~"
Mai's lips were quivering, her eyes were looking at me as she blushed deeply, "Kaito...."
I gently inserted the tip of my cock into her pussy, feeling her suck me in completely, "Hm...." I said as I held it in like that, "Oh...."
"Nnnghh~~!!" Mai closed her eyes and moaned, "OHhh~~"
I saw that a bit of blood had come out as I pushed my cock a bit deeper, "Mai...." I said, "You're a...."
Mai opened one eye and looked a me, "Y-Yes...." She said, "I am....."
"Oho~" Naoya said, "This is better than I expected. Now, keep going~"
I grabbed Mai's waist, gently pushing my cock a bit deeper. I felt the way my cock rubbed against her insides, her hymen having broken and a bit more blood coming out. Mai's body was trembling in pleasure as she let out a oud moan.
"Ahhh~" She let out, "Ohh....."
I held my cock halfway in, looking at her, "Let me know when you want me to move." I said, feeling her pussy clench hard onto my cock, "Mai...."
She nodded, "I-It's okay...." She said, "You can move."
I rubbed her belly, "Are you sure?" I asked, "I can feel your pussy molding into the shape of my cock."
She nodded again, "Go ahead, Onii-chan..." she said, "You can move."
I began to move my hips, feeling how my cock was grinding against the wrinkles of her walls. With every slow thrust, Mai's body was shuddering in pleasure. She closed her eyes and let out moans as Naoya had Mai's hand on her breasts.
"Fufu~" Naoya said, "Have a feel of my babies, Mai-chan~"
Mai was moaning, "A-Ahhh~" She let out, "Hmmm~~"
I kept moving my hips, thrusting her into nice and slowly, feeling how her pussy was tightening hard into me.
"Plap....plapplap....plap.....plap...."
"Oh...." I said as I reached for her breast, "That...."
"Feels good, doesn't it?" Naoya asked, "Good boy~ Keep fucking your sister just like that~"
"Mmmm~" Mai was moaning, "Ohhh~ K-Kaitooo~~"
I began to pick up the pace, my cock sliding deeper into her pussy as she sucked me in completely. I couldn't take my eyes off her face, being absorbed into how beautiful she was. The way she blushed, her eyes being closed, and her mouth being open while moaning. All of it was very arousing, seeing how beautiful Mai was.
"Mai...." I said, my cock thrusting into her a bit faster, "Mai....."
"Plapplapplapplap!!"
"Hnnghh~!!" Mai let out a moan, "OHHH~"
"Easy, easy." Naoya smirked, "She's just lost her virginity, don't ruin her."
I groped Mai's breast, "Don't talk." I told Naoya, "Let me just...."
I kept thrusting into her, feeling how the tip of my cock was hitting the deepest part of Mai's pussy. Her pussy was clenching hard into me, not wanting to let go as my cock slid in and out of her. Her juices were drenching my cock completely, adding lubricant to the hole.
"Oh...." I said as I felt Mai's body tremble violently, "Mai, you're so....ah...."
I leaned down to her, seeing how she opened her eyes and looked at me. She leaned up a bit, meeting my lips with her as we kissed again. She wrapped her arms around my neck, her legs doing the same with waist, and she kissed me back. Her tongue was wrapping passionately around mine while her pussy was clamping down tightly onto my cock.
"Fufu~" Naoya chuckled, her fingers running through my hair as I kissed Mai, "Yes...."
I kept thrusting into Mai, a burst of passion and arousal filling my body, causing my hips to swing faster and harder.
"Hmmm~" Mai pulled away, "O-Onii-chan~~!!"
My cock was thrusting hard into her, the sounds of it being pounded were loud and clear.
"PLAPPLAPPLAPPLAP!!!"
"S-slow down~" Mai managed, "K-Kaito~!"
I slowed my thrusts down, "I'm sorry...." I said, leaning back and holding her waist, "I'm sorry, Mai."
She looked at me, smiling slightly, "It's my first time, you silly..." She said, "I can't handle your hard thrusts just yet."
"Be gentle~"