At some point, her brothers began to play with Yuuna's body. Yuuna accepted their actions, but as siblings, she began to feel that it was strange and refused. She refused to stop, but was persuaded that it was the last time, so she obediently followed them. When her brother used his tongue naughtily and caressed her in the way that made her feel the most, her whole body relaxed and she was made to cum by his young, rock hard cock.