[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>, wearing the skinny pants and the light blue chambray shirt in <Picture 6>.

Each person keeps the same face, hair and outfit whenever they appear.
bright fluorescent office light

[Shot 1] framing=bust shot, chest up camera=locked (POV shot from <Subject 1>'s viewpoint). <Subject 2>'s face and shoulders fill the frame as <Subject 2> wraps her legs around <Subject 1>'s waist, pulling him deeper, her head thrown back on the desk. <Subject 2> is on the central desk, facing the camera.
[Shot 2] At 00:02.333, framing=close-up on the face camera=locked. <Subject 2> cries out, her eyes fluttering shut, lips parted. <Subject 2> is on the central desk, facing the camera. <Subject 2> (S2) says: <d>[Korean] ...그래, 거기... 거기가, 좋아... 아...!</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.