My girlfriend is a bit of an exhibitionist, likes to tease showing off her hot body. She rarely wears a bra and flaunts her breasts wearing sheer tops. We had been on Kauai a few days and were planning to hike the Napali Trail and then continue to the far waterfall. I’ve seen here braless look many times but I was a little surprised when she dressed for the trip wearing tennis shorts and just a very light, transparent, yellow tank top. Even before we set out you could see her breasts and nipples perfectly. I was excitedly anticipating what they would look like after hiking for several hours in hot and humid weather. And I was right; after only half an hour her sheer top became wet and even more see through and clung to her breasts - watching her on the trail was like watching a six hour Wet T-Shirt contest!