i usually don't participate in company gatherings, but i reluctantly joined at the invitation of my junior, Mami. it got too lively and i missed the last train, so i had no choice but to check into a hotel with Mami. mami is usually serious and capable at work, but when she drinks alcohol, her tension rises and she kisses everyone indiscriminately. at first, i was enduring and taking care of her, but i lost to the temptation of her cute lips and ended up having sex until morning.