Sekiguchi Yuuko(関口優子)

Sekiguchi Yuuko is a JAV actress born in Tokyo on December 3, 1978. Standing at 166cm tall with measurements of B80-W58-H82, she is known for her work primarily in the mature woman ("熟女" or "jukujo") genre. Based on the available data, Sekiguchi's career appears to have begun around 2008 and continued actively through 2014. Her filmography heavily emphasizes the mature woman demographic, often featuring themes of infidelity ("人妻・主婦" or "married woman/housewife") and exploring a range of intimate acts. Common tags appearing alongside her name include anal sex ("アナル"), group sex ("3P・4P"), finger play ("指マン"), and cunnilingus ("クンニ"), suggesting a willingness to engage in diverse and sometimes adventurous scenarios. Her work has been largely produced by the companies Gen-ei-sha (現映社) and Ruby (ルビー). She has also appeared in several series, including "大年増 極楽の11人" (Ootoshimayoi Gokuraku no 11nin), "肉棒求めて五十路と四十路が○人" (Nikubou Motomete Isoji to Yosoji ga ~nin), "新 三十路だ！四十路だ！五十路だよ！" (Shin Misoji da! Yosoji da! Isoji da yo!), and "四十路 五十路 六十路 七十路" (Yosoji Isoji Rokujuji Nanajuji). Overall, Sekiguchi Yuuko presents as a seasoned performer within the mature woman JAV niche. She is known for her willingness to explore diverse sexual acts and her frequent collaborations with Gen-ei-sha and Ruby, establishing a consistent presence within her chosen genre.