Sakura Okano, 45 years old. A mother of one, celebrating her 17th wedding anniversary, and a veteran bus guide with over 20 years of experience. She says that in her younger days, she was frequently hit on by passengers, and even had an extreme experience straight out of a pornographic drama: being fingered while stifling her moans in the back seat of a moving bus. "That was exciting (laughs)." Sakura has satisfied her sexual desires with numerous thrilling experiences, but now that she's in her forties...