(F30) my apartment's gym is connected to the pool. After some sweaty workout, I went to cool off at the pool. Seeing that there's only an old man napping under the sun, I stripped off to my undies and hit the pool shower before jumping in. After a few laps I saw the old man moved closer to my chair. He looks around 60s. At first he was decent and we chatted for a while. During our conversation, I realised he's leering at me. I don't mind it at all as I sort of love to flaunt my legs. I kept criss-crossing my legs and rubbing my thighs to tease him.

I realise there's a bulge under his shorts. He offered to swing by to his unit if I'm free. I rejected and jokingly said "you can take home my sweaty shorts instead". He didn't hesitate and offered me $100 for it. Before heading back to my unit, he offered me another $100 for my panties too. Luckily I have an oversized hoodie that covers a few inches below my crotch in my gym bag. Put on my hoodie and took off my panties in front of him. Went home bottomless, extremely aroused and $200 dollars extra.