[MKON-113] I've never done it with anyone other than my boyfriend, but I was played to have sex with a strange man Hikaru Miyanishi (Censored)

My boyfriend Yuji is a sleazy guy who cheats all the time. But I love him so much that I forgive him even when he's angry... One day, I wanted him to stop cheating, so I said, "You'd hate it if I had sex with another man, wouldn't you?" and Yuji's eyes lit up as he said, "That's totally fine!"... I immediately called a cheater over to my house, and he threatened me by saying, "Maybe I'll stop cheating if I get jealous lol," and I forced myself to start with an old man in front of Yuji, who was looking at me with a grin. I refused to kiss him, saying, "I can't do it with anyone other than Yuji!", but when the old man thrust into me, I couldn't help but make sexy noises... By the time we finished with the condom out, it felt so good that I think I was making a terrible face... Yuji became gentle and said, "Let's stop now, I'm sorry...", but honestly, it was too late. I think I've woken up to a pleasure I've never known before...!