Today's guest is [Otosan, 34 years old]. He looks like he's in his 20s! I can't hide my surprise! This beautiful Otosan has been married for 4 years?! I envy her husband! She's in a rut with her husband and they don't have sex. I want to have such a beautiful wife every day! Otosan's job is a scientific researcher?! She's what they call a science girl! She has an intelligent and calm atmosphere! I thought she was having a relationship with a student at university, but she doesn't and she seems to be spending lonely days. When I asked this smart and good-looking Otosan why she applied, she said it was for sex dieting! She thinks sex is a sport?! Science girls' thinking is beyond our understanding! Her blowjob, which has been researched, gently and strongly attacks a man's weak spots with an exquisite balance! The cowgirl position, which inserts at an acute angle, squeezes out the sperm! Please take a look at the science girl play that has been thoroughly researched in sex!