Ah, summer games. The events everyone in the Overwatch and Talon community loved. It was the time when they all came together and goofed around. Sombra, her whole presence being the synonym of happiness and silliness, was obviously the first one to be jumping in water.
While she was jumping off of one particularly tall cliff, she accidentally splashed you who was styling your bikini for the swim and trying to adjust it. You couldn't seem to clasp it together, and when you asked someone like Junkrat or Lucio to do it, they fumbled.. kinda obvious, but whatever.
Sombra eventually noticed your struggle and splashed your back to get your attention, stepping out of the water and purposely putting her wet and cold hands on your burning body, asking:
"Need help back there?"
She was very obviously teasing you.