Straddled by a Beautiful Pilot in the Spaceship Simulator

On a spring morning, soft sunlight streams through the glass windows of the space travel experience facility. I am Ryo, a space tourism tester in my early thirties. I usually do a lot of mundane desk work, but today I'm testing a new program in this state-of-the-art simulator. My heart is beating a little faster. The extraordinary space experience is exciting just to imagine, and even more so when I hear my partner is a beautiful pilot.

The facility lobby is quiet, with a faint spring breeze carrying a scent from outside. While waiting at the reception, I fiddle with my phone and take deep breaths. The test is simple: experience a zero-gravity flight simulation together and share impressions. But when it was explained as a test to build an empathetic trust relationship, I felt a bit excited.

"Ryo, this way please."

The one who called out is Lena, the simulation pilot. She looks to be in her late twenties, with black hair tied in a ponytail and wearing a tight spacesuit-like uniform. Her face is sharp and mysterious, with slightly upturned eyes like a sci-fi movie heroine. But what really catches my eye is her chest. The uniform is stretched tight, and her ample G-cup breasts sway heavily with each step. The weight of those large breasts pushes against the fabric, creating a deep cleavage. For a man like me with zero sexual experience, it's an irresistible sight. (Ah, if I could bury my face in breasts like that, it would be so blissful I might not even breathe...)

Lena smiles and guides me to the cockpit. The inside of the simulator is cramped, with two seats side by side. The cockpit screen is huge, displaying a faint starry sky. The morning light creates contrast, giving a dreamlike atmosphere.

"Nice to meet you today, Ryo. Let's enjoy the sensation of zero gravity together. Relax."

Her voice is soft and friendly. Once seated and buckled in, our shoulders touch slightly. Lena's body heat transfers to me, and my heart pounds. The simulation starts. A low engine-like sound echoes, and the seats begin to vibrate lightly. The screen shows a spaceship floating as Earth recedes.

"Wow, amazing! It's just like real space."

When I say that excitedly, Lena laughs.

"Right? The vibrations are realistic. That's the pride of this facility. It reproduces the floating sensation of zero gravity."

The conversation flows. She has extensive pilot experience. As the tester, I note my detailed impressions. Maybe because it's a spring morning, the whole facility feels calm, and the distance between us naturally closes. Seeing Lena's large breasts pressed against the seat, changing shape, I struggle to look away. (What would that softness feel like to touch... probably squishy, with fingers sinking in.)

As the test progresses, the simulation vibrations intensify. The spaceship is set to accelerate. Lena places a hand on my shoulder and explains.

"Zero gravity starts here. Feel your body floating."

The seats rock up and down, making my body feel lightly buoyant. Lena's body leans closer, her ample breasts pressing against my arm. The soft sensation comes through the uniform. A sweet shampoo scent drifts over, making my head spin.

"Lena, you're close..."

When I murmur that, her eyes narrow mysteriously. Sci-fi lighting illuminates the cockpit, shifting the atmosphere instantly. Amid the continuing vibrations, Lena suddenly presses her body against my seat.

"Ryo, shall we heighten the immersion? This is the trust-building test."

Her voice is lower and intimate. I know it's consensual, but my inexperienced heart panics. The next moment, Lena pushes me down onto the seat. Because the seat is narrow, her body covers mine. The weight of her large breasts lands heavily on my chest, cutting off my breath. The uniform fabric is thin, letting me feel the warmth directly. (Whoa, heavy... This breast weight is like planetary gravity. It feels like it could crush me, but it's incredible...)

"Huh, Lena, what are you..."

Cutting off my words, she rubs her hips against my groin. Matching the simulator vibrations, she moves slowly back and forth. In a riding position, it's light play but feels real and keeps the excitement building. The starry screen spins, expanding zero-gravity fantasies. Lena's eyes glow seductively as her lips approach.

"In zero gravity, bodies intertwine freely. Imagine it, Ryo."

A kiss comes. Soft lips cover my mouth, tongues intertwining in a deep kiss with mixed saliva and a sweet-tart taste. Unable to hold back, I reach out and grab Lena's large breasts. Even over the uniform, the volume is impressive. The G-cup breasts overflow my palms, seeming to spill between my fingers. When I squeeze, they jiggle and quiver, the nipples feeling firm. (Ah, so big... Those breasts move like living things. Imagining them floating in zero gravity makes me rock hard.)

Lena breathes heavily and whispers in my ear.

"Rub them harder. Move your hips with the vibrations."

Her hips grind against my groin. Through my pants, my erection rubs hotly. The simulator vibrations resonate through my lower body, feeling like a real spaceship. I drown in fantasy: Lena's naked body floating in zero gravity, straddling my erection. Her entrance swallows my shaft, repeating internal climaxes. Hot vaginal walls squeeze, sucking out semen. (Internal climax, intense... Filling Lena's belly with my seed over and over. For an inexperienced guy like me, it's a dream.)

Back in reality, Lena lowers her uniform zipper slightly. Cleavage is exposed, white skin glowing in the morning light. Overwhelmed with excitement, I pinch her nipples through the uniform. The hardened peaks press against my fingers, and Lena lets out a small moan.

"Ah... Ryo, that feels good."

Her hip movements grow more intense. In the riding-style play, her ample breasts near my face. I bury my face in them. Pressing my nose into the cleavage, I inhale the warm scent of breasts. Sweat and sweet fragrance mix, making my head melt. Sticking out my tongue to lick, I taste saltiness through the fabric. (The scent of breasts is irresistible... I want to drown in these large breasts. I feel like going down on her. Her entrance must be juicy too.)

Lena lowers my pants. My erection springs out, and her hand grips it. Her warm palm moves up and down in a handjob. The added vibrations make my hips lift involuntarily.

"This part of you is so hard, Ryo. Are you excited?"

"Yeah... Your breasts are too much..."

Instinctively, I flip up her uniform. A bra appears, black lace. Her G-cup breasts nearly spill out. Shifting the bra, pink nipples are exposed. Large areolas spread, captivating my eyes. Taking one in my mouth, I suck noisily. A milky-sweet taste hits, accelerating fantasies of sucking nipples in zero gravity while inserting into her, fingering her sensitive spot in the slick interior.

Lena moans while rubbing my erection against her groin. The heat of her entrance transmits through the pants, clearly wet. She loosens the lower part of her uniform, shifting her panties aside. Her haired entrance is revealed, the pink slit glistening with moisture. I reach out to touch her sensitive spot. The slick sensation makes Lena shudder.

"There... good, Ryo. More."

The hip movements intensify. In full riding style, her entrance directly contacts my shaft. Wet sounds mix with vibrations multiplying the pleasure. Unable to endure, I strongly squeeze the large breasts in my grasp. The flesh spills between my fingers, leaving red marks. (I want an internal climax... Imagining impregnating Lena with repeated releases. An inexperienced guy like me being straddled and ridden by such a beauty... I'm about to lose it.)

Climax arrives. Lena's hips move vigorously up and down. Simulator vibrations peak as my shaft rubs her entrance, precum spilling. Zero-gravity sex fantasies blend with reality, my mind going blank.

"Ah, Lena... I'm coming!"

A large amount of semen erupts, soaking her panties. Lena smiles and embraces me. The weight of her large breasts presses on my chest again as I savor the afterglow.

"Hehe, Ryo. We built trust. Did you enjoy this extraordinary play?"

The simulation ends, and the cockpit lights brighten. Spring morning sunlight illuminates us. Lena's eyes are gentle, and I feel an empathetic bond. I nod. This experience is unforgettable. The mysterious sensuality of space leaves excessive excitement on this morning.

Yet, in my heart I think, (The sensation of those ample breasts still lingers on my body... Tonight, I'll fantasize again while touching myself. Imagining thrusting into Lena's entrance and repeating internal climaxes, I want to climax over and over. For an inexperienced guy like me, this is the ultimate space journey.)

In the post-test meeting, Lena and I share impressions. Her smile shines as a spring breeze envelops the facility. On this day when trust was born, it feels like a new star lit up in my life. But the erotic afterglow doesn't fade, and my erection twitches again. The weight of G-cups, zero-gravity hip movements... all treasures to me.

(Ah, I want more. Next time, real oral or returning the favor with my tongue. Rolling her sensitive spot with my tongue to make her squirt. Making those large breasts slippery with oil for a paizuri would be nice too. The dream of internal climax, someday in reality...)

As I leave the facility, the spring sky is blue and my heart feels light. But the stickiness in my groin reminds me, reigniting excitement. Thank you, Lena. This spaceship simulator changed my life.