I used to go swimming with my friends at our local pool and afterwards we'd sometimes chill in the hot tub.

It was a smallish square-shaped jacuzzi so you were lucky to fit around 4 people in it at a time and around the edges were little underwater seats so you could just chill out. The water was up to our shoulders. There were jets all around the sides of the hot tub and they were pretty powerful. There were so many bubbles you could hardly see what was going on underwater.

I dunno how many times I discreetly pulled down my shorts and positioned myself over the jets, felt so fucking good. I never came though, I just enjoyed the sensation.