``The longer we've been together as a couple, the more we've noticed a difference in our motivation for sex...'' Chiaki Kamio, 37, lives in Chiba Prefecture. - A mother of two who works as a part-time library worker in addition to being a housewife. - "I've always had a strong sense of exploration...I like to learn knowledge and techniques to feel better after watching the internet and AV, and I like trying things out in my daily life.But my husband... - As long as it makes me feel good, it's fine (bitter smile).'' The rift between the couple's views on sex becomes a hindrance to Chiaki's greedy and lewd talent. - ``I want to have sex with a professional that makes both of us feel super good.'' Take a look at her high-potential sex skills! - !