A neat and tidy black-haired beauty with big breasts appears in an adult video at the command of her boyfriend...!! ? ? Reina-san has come up with a reason that sounds like the setting of an erotic manga. She is 21 years old and works at the cosmetics counter of a department store. As she works at a department store, she has a very elegant atmosphere. Contrary to her neat and tidy appearance... she has big breasts that are clearly visible...!! Or should I say they are hanging... anyway, she has big, soft, bouncy breasts!! The size of her breasts is ``E cup''!! It is no exaggeration to say that she has the most favorite breast size of all mankind. Her small areola, inversely proportional to her large breasts, and her firm yet small nipples arouse men's sexual desires. It seems that she has a boyfriend! It is extremely indecent to appear in an adult video even though she has a boyfriend, and I would like to scold her on her boyfriend's behalf... But it turns out that she came because of her boyfriend's ``NTR fetish''. He is an older office worker, and apparently they met at a meet-and-greet. Attracted by his looks and interesting conversation, she started thinking about dating him, and his huge penis made for a great start! When choosing a lover, she makes her final decision based on the size of his partner's genitals, showing just how perverted she is. And he gets sexually excited when he sees his lover appearing in adult videos... Just how sexually intense this couple is...!!! Thank God I can have sex with such a busty beauty with her boyfriend's consent!