Hidden beneath the covers, the sisters explore each other's untouched flesh, their fingers tracing the curves and planes they've never dared to acknowledge. One sister tentatively reaches out, her hand shaking as she cups her sibling's breast, feeling the weight and warmth. The other sister gasps, her back arching slightly, her body pressing against her sister's in a dance as old as time. Their breaths come in ragged pants, their hearts pounding in their chests, as they succumb to the taboo desire burning between them.