Mizuho is an office lady at a securities company. She has beautiful legs wrapped in thin black stockings, lace on her décolletage line, and gives the impression of an intelligent, mature woman full of sex appeal. She doesn't say much, perhaps because she's nervous or anxious. She said that she was most worried about being found out by her coworkers, so perhaps she's still hesitant. Her neck, seen up close, is white and translucent, and when I stroked it, it was smooth. She closed her eyes and her face became lewd all at once. I pulled her black dress aside from the top and looked at her breasts, and I saw beautiful small nipples at the tip of her pure white, soft bulges. When I licked her, she looked embarrassed, and she let out a voice saying "Ah...Ah". When I looked down, her blue T-back was tightly digging into her buttocks, and both ends were red. When I touched her, she was wet. I noticed that her breathing was getting rougher and rougher as I attacked her with a vibrator. Her underwear, which was sticking tightly to her vagina, was strangely erotic. Her natural hair, which was slightly protruding, looked even more obscene. Her pants were getting wet to the limit, so I took them off and stuck my finger inside. At the same time, I stimulated her clitoris with a vibrator, and her voice grew louder, "Ahh, Ahh," and her pussy started to slosh. "Ahh, I might come..." she said, and she jumped up and down. Her hardened penis was reaching its limit. First, she licked the area around the head. She also licked the underside. Soon, she couldn't hold back any longer, and she took it in her mouth and wrapped it with her thick lips. After sucking it back and forth for a while, she started stroking it with her hand, going from the shaft to the bottom with her long tongue, and licking the balls. Her slow and sticky blowjob was the best. I had her spread her legs on the chair and inserted it in a situation where we could see each other's pussy clearly. She let out a voice of "Ahhh," closed her eyes, and looked pleased. "Ahhh, it's so big..." Mizuho murmured. The luxurious sex time of an intelligent adult began.