Went to the gym with sister in law in tight yoga pants and nipples showing

Today I hit the gym with my sister in law and she wore some tight yoga pants and a white tank top.

When we got to the gym she hopped out the car and the cold air made her nipples perk up and poke out of her white tank top. I could tell she was a bit shy trying to cover them up but she caught me looking and seemed to blush and kinda like it.

My wife said they got naked in the sauna and they were both dripping glistening wet. Ughh so hot!

When we got back to SIL house, she took a shower. She offered for me to use her shower after so I said hell ya. When I got in her bathroom I found her used panties sitting on the edge of her hamper. My cock instantly got hard and I licked her juices off. I stroked my dick with them and sent a big load of cum all over where her pussy sits. I folded them up and put them in her dresser afterwards, she is probably going to wear them this week when we are all hanging out!