I spend my summers on a lake. there are 6 siblings who all have cabins next door. Our place has a hottub. i have spent probably 150+ nights in the hottub/lake skinny dipping with a few cousins our age. Primarily it is my wife, myself, Cousin 1 (31), and Friend (30F) and Friend (38M). But cousin 2 (35), cousin 3 (28) and my bother have all joined numerous times. i like to sit on the edge of the hottub with my dick hanging down in full view. my wife has 36DDD breasts that float and look amazing across the water.
We have also been camping numerous times with the primary group and cousins. spend 30% of the time naked. casually talking no towels. even fucked my wife in the tent numerous times with others no more then 20 feet away.
Many more stories or specific times if you want me to share