Our First Foray

I look at my sister, her eyes showing a level of longing I had never experienced before. The more she looked at me that way, the more I felt my own growing arousal. I looked her over her lovely long hair, her perfect lips, her sexy throat, her chest swaying with each breath as she leans in towards me. My dick jolted against her shirt, hardening further almost immediately, the head landing directly between her large tits. She looked down at the placement, then back at me, and smiled. I looked back into her eyes and gulped, the nerves on the tip of my cock firing with each of her breaths as her shirt rubbed against it.

“Y-yes,” I muttered silently. “Y-yes, I – I do.”

Tabby leaned back a little and grabbed the bottom of her shirt, pulling it over her head. Her magnificent breasts fell free from their fabric prison and gave a little bounce. This sight caused my dick to spasm again. Her perfect tits with their small nipples, on full display to me for the first time, gave my heart palpitations. My breathing became a little heavier as I reveled in the sight of her half-naked in front of me.

“Do you like them?” she asked me, squeezing them together with her arms. “They're not as big as yours, obviously.”

I stared at them, transfixed. Without even realizing it, I reached my hand out and gently laid it on one of them, feeling its softness. My fingertips flowed slowly along her velvet skin until they reached her nipple, the soft bud sliding between them. I lowered my hand fully over it, her nipple now resting against my palm, as I gently squeezed her breast. A soft moan escaped her lips as I did.

“They're what got me this way in the first place, so yes.”

She giggled at my reply and stood up, my hand trailing after her, longing to feel her smooth, perfect breast again. Before I could do anything else, she lifted my legs and shifted them onto the bed, sitting down next to them. Her hand reached out towards my huge dick, her fingers gently wrapping around the shaft. I gave an audible moan, the feeling of a hand other than mine sending a shock through me.

“Oh, god...” I whispered. Precum seeped out of my cock as she started to move her hand up and down, giving me a very soft yet effective handjob. My breathing became heavier as she jerked me off, one of my hands traveling below my balls to my now-soaked pussy. I parted my labia and found my clit, doing small circles around it. My other hand pulled my own shirt up over my giant tits, yanking my bra down once it was out of the way. As if sensing what I wanted her to do, she reached her free hand over to my chest, taking my breast in her palm.

“Oh, Bee, you're so soft,” she says softly, her fingers starting to knead my tit. Her other hand has picked up the pace a little, starting to work my cock thoroughly. I worked my clit in kind, trying to match her rhythm on my dick. Every single sensation was monumental, my pleasure rising steadily. My hips started to move in small circles as I played with myself, almost ruining Tabby's movement on my throbbing rod. Never had I felt this good masturbating before, but God help me if I ever settled for anything less than this again.

I started to feel that familiar, pleasurable ache rising deep within me again. My hand was moving quickly to bring about my orgasm as hers was picking up speed too. My mind was almost blank, but I had enough wit to make sure to warn her.

“Tabby, I'm – I'm gonna -! Oh, god, I'm gonna cum!”

Hearing me say that must have triggered something in her because she did something I never expected: she removed her hand from my dick and replaced it with her mouth. She only got the head in, but feeling her warm, wet mouth around it was enough to send me over the edge. I lifted my hips off the bed and gave a loud groan as my cock erupted in her mouth, sending stream after stream of cum down her virgin throat. At the same time, my pussy clenched tightly as my playtime on my clit achieved the desired effect, my juices covering my hand and thighs. Her hand on my breast squeezed tightly, my nipple poking between her fingers, as I pushed my chest out. My orgasm rocked me in ways I didn't think were possible, sending fire and electricity through my every nerve at once, making the feeling intensify with each passing second.

Tabby tried her best to keep all my cum in her mouth, but her lack of experience **** her to cough much of it out as she lifted herself off my still pulsing dick, a final shot of cum hitting her square in the face. I collapsed back onto my bed, now wet with both my semen and juices. I tried to catch my breath, my body shuddering every now and then in blissful aftershocks. In all my life, I had never felt anything that intense or that amazing. I wanted it to linger as long as it could.

I looked up at Tabby, a stream of my semen stretched across her nose and dripping from the corners of her mouth, and could only pant and smile. My chest heaved with each breath. She was looking at me in surprise and admiration, the display she got having made quite an impression. As we stared at each other, she released my now softening dick and brought it up to her face, wiping the cum from her nose and mouth. She sucked on her finger, licking it clean of my sperm, and moaned appreciatively.

“You taste so good, Bee. Sorry I couldn't hold the rest of it. I'm surprised there was so much of it so soon after you came the first time!”

Come to think of it, I hadn't cum that much in such a short time ever, so I was rather amazed myself. It made me think of what else was special about me. You know, aside from the glaringly obvious.

I reached out for her and pulled her gently to me, laying her down beside me as I basked in the glow of my orgasm. I felt her cuddle next to me, her head laying on my giant, pillowy breast she had just been grabbing. I'm not sure how long we stayed that way, but the entire time I was at peace. I just had my first sexual experience with someone other than myself. Sure, it was my sister, but it was incredible all the same.

Then the thought hit me: I needed to repay the favor.