Had another session but this time when I saw her she was wearing a skirt, before i went to get changed she whispered to me to leave my thong in my bag and go commando. I thought she was going to change but after I came out of the locker room she was still in that short skirt showing her long legs. I quickly found out why she wanted me not to sport my thong as we hit some chest exercises and she spotted me standing right on top of my face as I got to look up her skirt with every rep! She wore a thong as usual but this time it was crotchless, and there was her smoothly shaved pussy. It wasn't long till I got hard and my erection was poking out of my gym shorts. Our whole work out consisted of my cock hanging out at full mast and her upskirting me in various positions showing me her pussy getting wet as the hour went by. One or two times her colleagues did get a glimpse of my dick but they didn't say anything just smile at her so I'm sure she told them what we get up to. We finished the session in the showers together, just went into the men's locker room stripped down leaving our clothes on the bench and headed into the showers. Always great when my dick gets a free work out too.