A silk blindfold heightens every sensation in “private masturbation.” She can’t see the camera, only feel her own hands and toys. Ice cubes melt on hot skin; a wand vibrator presses hard against her clit. “private masturbation” records the goosebumps, the arch of her back, the moment she squirts violently across black sheets, blindfold soaked with tears of overwhelming pleasure. “private masturbation” fades out on her trembling aftershocks, utterly spent.