A reverse 3P harem life with the neighbor's childhood friend and younger sister; the neighbor's sister is then NTR'd. (Inaba Ryuka, Hiiragi Rui, MIAA-180)

My two childhood friends, Ryuka and Rui, live next door. I dote on them both, and they're both adorable, big-breasted girls. But they don't seem interested in me. One day, they sneaked over to my house, showed off their breasts, did nipple play, and even had sex! They were fighting over my penis!