In a house of strict rules and unspoken tensions, two 18-year-old sisters find an outlet for their pent-up desires. They sneak into each other's rooms at night, their hearts pounding with excitement and fear. Clad in barely-there nightgowns, they trace each other's bodies, their fingers exploring the unknown. Their first tentative kisses lead to more, their bodies pressing together, their breaths coming in ragged gasps as they lose themselves in the forbidden pleasure of each other's touch.