It was a teenaged jogger; and it was a girl!
As the girl jogged towards me, I noticed she looked pretty tired so she came up to the bench I was sitting on and sat down.
"uhh" said the girl as she stretched her arms, before putting them by her sides again.
I looked at her and noticed her breasts or the shape of them were showing through her cardigan, so she had to be atleast a B or a C cup.
Before the girl could look at what I was doing I looked away back at the lake.