Subject definitions:, is the woman whose exact face, identity, hair color, hairstyle…

Subject_definitions:
<Subject 1> is the woman whose exact face, identity, hair color, hairstyle, skin tone, body proportions, massive erect penis, testicles, clothing (oversized white Yellowstone National Park t-shirt, white Nike socks), and overall appearance come from <Picture 1>.
<Picture 1> is the exact opening frame of [Shot 1].

summary:
[reference generation] Opens on <Picture 1> with <Subject 1>. She remains fully <Subject 1> for the entire 10 seconds. No body transformation, no face change, no clothing change.

retention_analysis:
<Subject 1> (appears in [Shot 1]): fully_preserved — complete appearance, face, identity, hair, body, massive penis, clothing and environment remain consistent the entire time.
<Picture 1> ([Shot 1] first frame): fully_preserved — opening composition, framing, lighting, bed and background remain identical throughout the whole shot.

detailed_description:
[Shot 1 – 10 seconds continuous]
Opens exactly on <Picture 1>. The camera distance and framing stay constant. Soft natural bedroom lighting, white sheets, intimate close-medium shot focused on her body and massive cock. Looking straight into the camera with an urgent, breathless expression she says in a low, shaky, aroused voice:
"Fuck… I’m gonna cum so hard…".

She is sitting on the bed, legs spread, massive thick erect penis standing fully hard against her belly. She looks at the camera with a teasing, needy half-smile, dark hair slightly messy.

She wraps her right hand around the thick shaft and begins stroking slowly, then faster, fist gliding up and down the veiny length with wet, glistening precum. Soft wet stroking sounds, skin-on-skin friction, quiet bed-sheet rustle. She keeps eye contact, breathing heavier, soft needy moans.

After a few seconds she suddenly slows, then stops completely. She pulls her hand away and places her arm behind her on the bed for support. 

She holds still for a brief moment, body already tensing, hips twitching. Then the orgasm hits.

She lets out a loud pleasure moan as her whole body locks up. Massive thick white cum erupts in powerful, continuous ropes — heavy, creamy, sticky jets shooting high from the tip, arcing and landing across her t-shirt, thighs, and sheets in thick ropes and splashes. Her hips lift sharply off the bed, thrusting upward into the air as if desperately fucking nothing, back arching hard. She shivers violently, legs trembling and kicking slightly, abs and thighs spasming, the massive cock pulsing and twitching with every intense spurt. More thick cum keeps pumping out in long, heavy pulses while she keeps moaning in pure overwhelming pleasure, body shaking and convulsing uncontrollably.

The shot stays locked on her face, the pulsing cock, and the heavy white cum flooding out until the final frame freezes on her still shaking, hips raised, cock still twitching and dripping.

overall_soundscape:
Quiet intimate bedroom tone + soft bed-sheet rustle.
Wet, slick hand-job stroking sounds (skin sliding over thick shaft, soft squelches of precum).
Her escalating breathy moans turning into a raw loud pleasure moan.
Heavy wet cum-shot SFX: thick, forceful spurts and continuous pumping, wet splatters landing on fabric and skin.
Intense body SFX during orgasm: sharp hip thrusts, muscle tremors, shivering, soft bed creaks under her shaking body.
No music. All sounds remain close, intimate and diegetic.