On a rainy night, I was relaxing with my wife when suddenly the doorbell rang. At this hour? When I opened the door, there stood my sister-in-law Ayumi, soaked to the bone from the rain! She said she had a fight with her husband and ran out of the house. Since that's the case, I decided to let her stay over. But when I accidentally caught a glimpse of Ayumi's wet, see-through shameful parts, she smiled seductively and asked, 'Brother-in-law… are you getting hard looking at my nipples?' Then she started rubbing my crotch...
