Write a 800 word story about Aether and Lumine from Genshin Impact. Aether and Lumine are taking a bath in the river together. Aether watches Lumine take off her clothes. Lumine being as well endowed as she is dose not cover herself. Lumine dives under the water and sees Aethers massive penis in front of her face. Her brothers penis was huge. She starts showing off for Aether, shaking her breasts and swaying her hips.