In the dim light of their shared room, sisters Mi and Diana let out soft sighs as they slip their hands beneath the sheets. Their secret masturbation sessions have become a nightly ritual, a way to release the pent-up desires they can't act on with each other. Tonight, they're extra eager, their pussies throbbing with need. Diana's fingers dance over her clit, her breath hitching as she imagines her sister's touch. Mi, meanwhile, plunges two fingers deep into her wetness, biting her lip to stifle her moans. Their bodies writhe, the sheets rustling with their movements, as they race towards a shared, silent climax.