Think of the family on vacation at a mild temperature lake. The teenagers are swimming with their friends by a large in-the-water playground 100 yards away. Life guard is on duty so every one is safe. Picnic lunch is set off to one side and the ice chest is full of cold drinks. No need to bother mom and dad. (HA!) That's what YOU think! Mom's string bikini has "Accidently" come untied and dad's swimming trunks have settled on the lake bottom next to dad's. Mom is floating in dad's arms in a quiet, secluded cove of crystal clear water, with visibility under water of about 50 feet. Dad has found something interesting to kiss. And mom is feeling . . . wonderful.
The next thing they hear is an older teenage son saying "Mom, dad, I want you to meet . . . (a new girl he had met at the play ground.) And then he and she see mom and dare aren't in their suits . . . and all they can do is open their mouth laugh then turn red.
And yes, the bushes are so thick you can't see though them, but there isn't a lock on the lake. They are in the water. Mom is dropped in the lake as dad sinks up to his neck. Mom comes up coughing and snorting and because of that she comes up much higher that she would have had she seen who arrived.
He turns so red so fast he resembles a red fire engine and as soon as mom stops coughing and see who is there she turns fire engine red too.
UGH ! !
He came back after dinner and she never came back.
I guess every one has one of those moments. At least one . . .
As Jessica said . . . some people are just risk takers.
Good luck to you and yours.