見知らぬ人に彼のコーヒーでおしっこをするように頼んだ

I was waiting for my friend but she's being late and I barely can hold my pee! I noticed stranger with almost empty drink, got an idea how I can make his day better and get relief for myself. I peed in his cup while he's holding it! Oopsie, seems his hand is wet but he loved this drink I made for him!