UMD-1010 My sister came to Tokyo for a company event with her boyfriend, but they couldn't book a business hotel, so they had non-stop sex at my place for two nights and three days!

My sister and her coworker's boyfriend came to Tokyo for work. Due to the impact of inbound demand, they couldn't book a hotel in the city center, so they stayed at my place… My sister, who was supposed to be sleeping next to me, moved to the living room where her boyfriend was sleeping. What?! They're actually having sex in my room?! I pretended to be asleep and waited, but it went on for fucking ever!!! What?! How long is this gonna last?! I gave my sister a serious warning the next day! When I asked her, it turns out her boyfriend is a 'stud.' Sorry, I won't have sex anymore, so can you stay one more night? My sister went to work first, and her boyfriend went to the bathroom. Unbelievably, he was jerking off in someone else's house. I yelled at him!! He's apologizing naked and sitting on his knees, but his dick is rock hard. Naturally, they go straight from blowjob to sex!! That night, after the wrap party with staff, his sister who went home first was already soaked. He came back with souvenirs, and they got it on again...