I ended up unable to leave after having public sex as a punishment game with a boy I didn't even like. I am a 21-year-old office worker, and I went to a beer garden with my colleagues. Unfortunately, due to bad weather, the beer garden was canceled, and we went to a nearby pub, which was extremely crowded, possibly because of the beer garden cancellation. After having about 2-3 drinks, I got tired of the crowd and moved to the nearest colleague's apartment for a house party. The beer garden participants were over 20 people from the workplace, but they disappeared after the beer garden was canceled and after leaving the pub. Only the younger members, three boys and four girls, totaling seven people, went to the colleague's apartment. There were more girls than boys, and I let my guard down a bit and drank too much. Since we were in beer garden mode, we initially drank only beer, and maybe because we were eating salty snacks, everyone kept going to the bathroom. Eventually, we started mimicking the mannerisms and gestures of people from work, and if it wasn't similar, it turned into a punishment game. Due to the sweat from drinking and the heat, everyone started taking off one or two pieces of clothing, unrelated to the punishment game. I also lost my sense of embarrassment and ended up in just my bra and panties, and the other girls were in similar states, while the boys were in just their underwear or underwear and tank tops. In the punishment game, there were more demands to remove the last piece of underwear, and some people ended up completely naked, covering their important parts with their hands. I still had my bra and panties on, so I felt at ease. Eventually, Misae, a senior colleague who was completely naked, was told that her imitation of the deputy manager was "not similar," and she had to do a punishment game. But since she had nothing left to take off, she was told to "choose someone you like and give them a blowjob," and without refusing, she said, "Okay, Seiichi, you can finish in my mouth," and enthusiastically started. Everyone used that scene as a snack and continued drinking. Seiichi was lying on his back, so Misae was on top of him, fully exposing her private parts. It took a while for Seiichi to finish, possibly because of the drinking, and Misae's private parts were being penetrated by another boy, and Misae's movements became more intense, entering an erotic mode. Seiichi took a while, but he successfully ejaculated, and Misae swallowed it all. For some reason, Seiichi stroked Misae's head, and Misae looked delighted. It was my turn next, and with the confidence of having two pieces of underwear left, I ventured to imitate the deputy manager that Misae failed at, but I was told it was "even less similar." I was confident, but... I was told to "choose someone you like and have sex," and I said, "No, I still have something to take off," but I was told, "Your imitation was so bad it's like losing three times," and there was no support from the girls, instead, they encouraged me, saying, "Do it, do it, get laid quickly," and when I casually chose Kota, who was the same age as me, I was asked, "Are you eager? Ready to go?" I wondered, "What's this excitement?" and then I saw Kota's large penis thrust in front of me. Everyone knew about this big thing. When it was brought to my mouth, I asked, "Do you want me to suck it?" and was told, "It's included in sex," so I thought it might fit and took it in my mouth, and Kota started moving his hips. There was a call of "Go, go, Kota," and the girls were watching, saying, "Really?" After a while of oral sex, Kota laid me down, started kissing me, and began rubbing my clitoris over my panties. In between kisses, I let out sounds like "Mmm, ah," and again there was a call of "Go, go, Kota," and the girls' gazes were on me. When my panties were removed and my slit was traced with a finger, I let out sounds like "Mmm, ah, ah." When I was told, "Yumi, you're so cute," I lost my strength. My bra was also removed, and my breasts were squeezed until their shape changed, and with the pain and pleasure, I let out a sound like "Ahh." A girl's voice said, "Already?" I shook my head to indicate it was different, but it seemed like an "I'm about to come" signal, and a girl said, "Kota, Yumi seems to want it, so give it to her quickly." When Kota spread my knees and entered me, everyone's faces were gathered at my lower abdomen. I felt Kota entering me with a "creak" sound. Kota's lower abdomen was stimulating my clitoris, and when I opened my eyes, I met Kota's gaze, and I felt embarrassed and shrank. A boy's voice said, "Yumi is becoming a woman. Make her come, make her come." Ah, but it seems so. Kota feels good... Kota turned me over and started thrusting from behind. When he pulled my upper body by holding both my hands, there was nothing to hide my face of ecstasy, and a girl's voice said, "That's already a face of someone who's coming." Kota's movements became intense, and there was a squelching sound from my vagina, and a slapping sound from Kota's lower abdomen hitting my butt, and my breathing was heard, which was embarrassing, but it felt good... When asked, "Does it feel good?" I answered, "It feels good, really good," and a girl's voice said, "You're about to come, soon." I said, "Ah, I'm coming, coming, I'm sorry, I'm coming!" I lost strength... Kota's movements didn't change and continued to attack me. Ignoring me, who was about to come again, Kota kept thrusting. "Ah, no, I'm going to break. Ah, it feels good." "Where does it feel good?" "My vagina, my vagina feels good, thrust more," I kept repeating "my vagina." I came many times, my consciousness faded, and when I came to, I felt something hot in my womb with Kota's body on top of me. "Did you come?" "I did, was it bad?" "It might have been a dangerous day, but if it's Kota, it's okay." I was embarrassed because everyone was watching, but I thought I had to say it now, so I said in a small voice, "Kota... if it's okay with me, please take care of me from now on," but everyone heard it clearly. "I came inside with the intention of taking responsibility," said Kota. When Kota brought his penis to my mouth, I licked it for him. "That was super erotic sex, I'm soaking wet," "I'm soaking wet too," "Is there anyone who will do it with me?" The girls seemed to have gotten in the mood and started. Everyone started moaning like me, which was funny. In the end, there were no condoms in the room, and no one had any, so everyone ended up having unprotected sex.

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