Renka is my regular sex partner, a woman from Shinjuku Koyuen. She used to work as a cosmetics salesgirl but was exhausted from job-related stress. During sex, she suddenly said she wanted to "try something more exciting," so I introduced her to two male friends of mine who identify as M men, and we proceeded with a gonzo-style 3P shoot. Though she looks sharp and composed, Renka actually has a dominant streak, encouraging the two submissives by saying, "Go ahead, torment them thoroughly," then sending them in. I didn't participate in the filming—instead, I made sure beforehand to explain to the two M men that everything would be recorded, and obtained their consent. As a greeting, they face sat and stepped on her cock, and Renka, fully in sadistic mode, responded to their desire to film themselves being dominated. With two cocks at her disposal, she used her hands, feet, and mouth to tease and torment them mercilessly. Her deeply hidden penchant for domination surfaced, creating an intensely erotic scene. When I reviewed the footage after filming, I saw a side of Renka I'd never seen before. The entire experience was thrilling and fresh, her dominant nature shining through in the most arousing way. Seeing Renka tease and dominate those M men was seriously hot. The appeal of Shinjuku Koyuen women is truly immense.