"This is a mistake," she whispers, but her body betrays her words, grinding against me as I tease her nipples through her blouse. I spin her around, bending her over the desk, and pull down her panties, admiring her pert ass. She moans as I slide my cock into her tight pussy, fucking her with long, slow strokes, taking my time to savor every moment. She clenches around me, her pleasure mounting, and I know she's close. I lean in, whispering in her ear, "You're still mine, aren't you?" And she comes undone, her body convulsing as I fill her with my hot cum.