``Sex with my husband has passed the rut and is like penance...'' Yuko Tachihara, 48 years old, housewife and mother of two children. She and her husband, who have been married for 23 years, still spend the night together once a week, but things don't seem to be going well for her... We just don't have the same tastes in sex. Once, I said we'd do a cosplay to keep me from getting into a rut, but he prepared one for me, but when I saw it, he was wearing sailor suits and bloomers...I thought, ``I don't really get it.'' ``I want to enjoy the pleasure to my heart's content through adult sex where both of us are sweaty and excited.''