As they huddle together for warmth, their breath misting in the chilly air, the sisters' hearts pound in sync, their bodies pressed close. Their hands, once hesitant, now move with a newfound boldness, tracing the lines of each other's bodies, eliciting gasps and soft moans. Their lips meet in a passionate, open-mouthed kiss, their tongues dancing as their hands roam, their innocence slowly yielding to the heat building between them. They explore each other's bodies, their fingers finding the slick, wet folds hidden beneath soft curls, their breaths coming in short gasps as they bring each other to the brink of ecstasy.