Only time it happens is if we're both wearing swim suits. Our 4-year-old is autistic and really likes sensory stuff, especially water and swimming. Our jacuzzi is too big for just him but he likes to splash around in it with the bubbles, so we'll both throw on swim suits and I'll blow bubbles at him while he's splashing around. I guess it would be like if we had a hot tub, except with bubbles. Definitely no nudity though, I think that's inappropriate, especially given his age. Also I don't want to normalize it to him, given his challenges I don't want someone to take advantage of him - if he thought seeing his parents naked all the time was normal, he might think seeing other adults naked (or even being naked in front of them) was normal too.