This almost never happens, but when it does, naked (or topless) tennis is WAY better than regular tennis. Especially when they stretch... or have to reach for a ball...
Sometimes yoga classes- especially hot yoga classes get to well over 100 degrees. Sometimes the MILF moms and the college students, and the hot single ladies... well... take their tops off and practice it the old world way - topless. Feeling the breeze blow suddenly, making their nipples hard... feeling the sweat trickle down their breasts, and down their thighs... feeling their vagina heat up, tingle, and press against their short shorts... yes that is good yoga.
You have to appreciate this view, if you are a man, or lesbian. A woman facing away, unaware you are watching her, admiring her beautiful ass, legs, back, hair, arms... everything...