A married woman delivery health service that employs many wives who work in secret from their husbands. A man who wants to have sex with a married woman delivery girl asks for real sex during play! Even if she refuses, the man doesn't give up and suggests "just the tip!", inserting and removing only the glans, suggesting a "tip piston"! Then, he feels like he is being teased about insertion... and he suddenly changes his attitude! Even though real sex is supposed to be prohibited, the delivery girl herself starts begging for sex, saying "I want to put it in"!