i'm a college student who finally has a girlfriend and is spending fulfilling days. one day, my girlfriend decides to go home to her parents' house for a few days. i'm a little lonely, but it can't be helped. i was thinking about how to spend the night alone when i got home, and there was my girlfriend's female friend in front of the entrance. she had a convenience store bag filled with alcohol and snacks. for some reason, i decided to drink at home with my female friend in this situation where my girlfriend is absent! i thought, "isn't this bad?" but the girls were drinking at a high pace. i got a phone call from my girlfriend in the middle of it and i was stammering. i just wanted to end this drinking party without anything happening! but then the girls suddenly said they wanted to stay overnight!? a female friend suddenly approaches me late at night. but i refused, saying, "but i have a girlfriend..." but in the middle of the night, i was attacked again and defeated... i ended up fucking them completely... from there, it didn't stop! i ended up having a lot of 3p and welcoming the morning. i thought they would leave after that, but the girls didn't leave... in the end, we kept fucking for three days and three nights! i was about to be crushed by my guilt towards my girlfriend. but i did it... because i can't experience such stimulating sex with my girlfriend...