Ayumi is going to Hawaii on her husband's company trip, and she's so excited that she bought a special bikini for the occasion! When her husband sees Ayumi's swimsuit, he strongly objects, saying that if she wears something like that, her colleagues will give her weird looks! The swimsuit Ayumi bought is a tiny micro bikini with very little coverage! Still unwilling to give up, Ayumi starts trying on the bikini, feeling cheerful. Just then, her husband walks by and peeks at Ayumi in her swimsuit... Perhaps because they haven't had sex in a while, he is captivated by his wife's almost naked figure, and involuntarily lets out a roar. When she notices him peeking, he tries to cover it up by saying that the swimsuit is no good, and emphasizes that point, but his dick is rock hard! Feeling like she's in Hawaii, Ayumi asks him to put oil on her, and her male blood is stirred after a long time, so he takes the opportunity to start raw sex with her, massaging her in the most sensitive areas over her swimsuit with lots of oil!