117HBAD-701 — My Friend's Sister Has Big Tits And Seems Quiet, So I Secretly Invited Her In And Had Sex With Her, And She Turned Out To Be An Erotic Woman Who Orgasms Endlessly.

Kenji and his friends often go to their coworker Hiroshi's house for a drink after work, but one day, when Kenji is drunk and peeks into the bathtub of Hiroshi's plain-looking sister, Kaito, he is turned on by her big-breasted, sexy body and wants to have sex with her. Kenji waits until Hiroshi is out and approaches Kaito, who is obedient to his every command and doesn't resist at all, so he has as much fun as he wants with the super-sensitive and sexy Kaito.