[Reference images]
<Picture 1> is the location; keep its layout and furnishings, with all surfaces clear of small objects.

<Subject 1> is the camera in this clip — only his hand and forearm appear in frame, in the sleeve of the outfit in <Picture 3>.
<Subject 2> is the woman with light brown wavy hair in <Picture 5>, bare skin, that set lying aside in the room.

Each person keeps the same face and hair throughout.
bright office light

[Shot 1] framing=bust shot, chest up camera=locked (POV shot from <Subject 1>'s viewpoint). <Subject 1>'s hands pull the gray slacks down to his knees, then his bare belly presses against <Subject 2>'s hips and slowly rubs against her, revealing the black cotton boxer briefs in <Picture 4>. <Subject 2> is at her desk, back to the camera, gripping the desk edge.
[Shot 2] At 00:02.333, framing=medium close-up, waist up camera=locked. <Subject 2> grips the edge of the desk with both hands and pushes her hips slightly back, her shoulders tensing as she looks down away from the camera. <Subject 2> is at her desk, back to the camera, gripping the desk edge.
[Shot 3] At 00:03.958, framing=close-up on the face camera=locked. <Subject 2> turns her head back toward the camera, biting her lip with an embarrassed, shy look. <Subject 2> is at her desk, back to the camera, gripping the desk edge. <Subject 2> (S2) says: <d>[Korean] …느껴져. 너무 티 나잖아.</d>

No text overlays, no subtitles, no watermark, no extra people in the background, no camera shake, no jump cuts.
The soundtrack is the room itself and nothing else: the low steady hum of fluorescent lights, faint air movement, the small sounds of paper shifting on a desk. It sounds like a real place recorded on location, not a studio.