Silk blindfold and wrists lightly bound in “sex positions for couple”—pure sensory surrender. Unable to see, every touch in “sex positions for couple” feels electric as she explores her own body. “sex positions for couple” captures the goosebumps rising when fingers graze inner thighs, the sharp inhale when they finally plunge deep. She writhes against invisible restraints in “sex positions for couple”, chasing friction until the blindfold is soaked with tears of overwhelming pleasure. The raw, shaking climax in “sex positions for couple” is the most erotic sight the series has ever filmed.