“muscles of armpit” is pure bedroom intimacy: close, slow, and breathless. She locks eyes with the camera in “muscles of armpit” while pinching her nipples, then trails a vibrator down her body. The toy hums against her clit in “muscles of armpit”, her hips bucking involuntarily. Every vibration is amplified in “muscles of armpit” until she’s grinding desperately, begging in whispers for release. When it comes, her whole body convulses in “muscles of armpit”, toes curling, back arched in one long, exquisite moment frozen by “muscles of armpit”.