Aiyama Yoko(愛山葉子)

Aiyama Yoko is a Japanese Adult Video (JAV) actress known primarily for her work in the mature woman (熟女) and pregnancy (妊婦) genres. Her career appears to have begun around the mid-2000s, based on available work samples, and continued for several years. Analyzing her filmography reveals a strong and consistent focus on the pregnancy niche. Many of her titles explicitly feature "pregnant woman" (妊婦) themes, often combined with other popular fetishes. Further tags reveal that she has performed in a variety of scenes including creampies (中出し), group sex (3P/4P), and cowgirl positions (騎乗位), often emphasizing larger breasts (巨乳). While the pregnancy theme remained central throughout her career, it's difficult to discern significant genre evolution from the limited information available. She appears to have consistently catered to a specific and well-defined audience interested in mature women and pregnancy-related content. Aiyama has worked with several studios and makers, including MARX, CORE, and Okura Eizo (大蔵映像). Based on the titles provided, she appeared in at least two series: one focused on mature pregnant women, and another compilation featuring multiple actresses. Her style seems to emphasize a mature, perhaps slightly older, aesthetic, catering to viewers with specific interests in maternal themes and experienced performers.