It's 10 PM in a residential area of Shinagawa Ward. I followed a woman I suspected was a prostitute, carrying a small bag that matched her outfit and an unnaturally large one. She rang the doorbell of the apartment's second-floor innermost room. It was easy to figure out which balcony to enter through. It wouldn't be this easy in a larger apartment... The woman appeared to be in her mid-20s. She had well-defined features and a sexy mole near her mouth. She was slender, but with a well-defined figure, about a C-D cup. Her nipples were pale pink, and her small areolas were very enticing... They began with a deep, sticky kiss, then licked the man's nipples thoroughly. She was a proactive, service-minded girl. I envy her. I wonder which establishment she was at... During cunnilingus, her face contorted seductively and her body swayed. She also seemed quite sensitive. After a brief exchange, the man put on a condom. This was a real prostitute... In missionary position, in what's known as the "love hold." Isn't her service spirit a little too much? Is this prostitute a slut? She also deep kisses him while riding him, then moves on to a pounding cowgirl position, followed by a grinding cowgirl position. And it's quite long. His slightly visible abs and pubic hair, a rare sight these days, are irresistible... After doggy style, she plays with his nipples, gives him a blowjob, and finishes with nipple licking and a handjob. I considered following her further to find out which establishment she works for, but then I realized that if we were in a building somewhere, I wouldn't know which establishment she works for, so I came to my senses and dashed off to a health club, where I could still make it in time for the 30-minute course.