Nanami, who is having no sex with her husband while he is away on a business trip, is entrusted with her nephew by her sister. The nephew is a total nerd and as soon as he arrives at the house he ignores Nanami and starts studying. His attitude stirs the blood of a former slut and tempts him. At first he ignores her but she succeeds in getting him erect (huge cock)! Then, late at night, she reverse rapes him and takes his virginity... but her first sex makes her libido explode! Not satisfied with just one time, she forces him to have sex raw even when they run out of condoms, and when Nanami tries to escape, she holds his dick in and cums inside him over and over again!