Being naked is FUN!

Not too long. I will not try to make the story sound flowery so I will stick with the facts. I met my ex wife at a local nudist camp and we were both totally naked when we met so that took care of all that "I wonder what she looks like naked" anxiety out of the way. She was 32, 5/4, 125ish with large D cup tits. I loved it. She broke the ice by commenting that we both had the same hair color (down there). This was before shaving was a thing so we each had a trimmed bush. Hers was trimmed close and I liked it. She was with another guy at the time but she made it obvious that she was interested. She would sit facing me in the hot tub or at pool side with her legs open and she would rub lotion on her tits and squeezing her nipples at the same time. She was drinking lots of beer so her mouth had no chaperone and made it plain that she wanted to fuck me. However, since she was there with another guy, we didn't do much except to exchange numbers and agree to meet again the next weekend.
So the next weekend came and she had to stay home since it was her weekend to have her kids (Son and Daughter) The son was young and in elementary school but the daughter was in high school. She was thin, with smaller tits (maybe a B cup?), red hair and freckles. Neither of them knew how and where I met their mother. So to them, and everyone else, I was just her new guy friend.

Fast forward a few months. The ex and I were serious by then, and I'd been over to her place plenty of times. The daughter and I got along fine — she was quiet, kept to herself, and never asked a single question about how her mom and I actually met. The son didn't care either way. He just wanted to know if I could throw a football.
Then came the weekend the ex and I decided to hit the camp again, and this time the daughter tagged along. She was seventeen, curious, and figured a "regular" outing. She had no clue. We pulled up, parked, and walked toward the gate. She was still in her shorts and top when a woman strolled past us buck naked with nothing but a towel over her shoulder.
The daughter stopped dead in her tracks.
"Wait. Everyone here is naked?"
Her mom just smiled. "Yep. That's the whole point."
The daughter looked at me like I'd set her up. I shrugged. "You get used to it in about ten minutes. Promise."
She changed in the little dressing shack. When she came out, she had her arms crossed over her chest, doing that thing where you try to cover up with your own limbs. She was thin, red hair tied back, freckles scattered across her shoulders and chest. Maybe a B cup like I figured. She was cute and she knew it, but right then she was mortified.
Her mom peeled off her own clothes without a second thought, and the daughter's eyes went wide. She'd never really seen her mother naked as an adult — not like this. And then she looked at me. Fully naked, no hiding it.
"Oh my God," she said. "You two met here. That's how you met."
Her mom laughed and said yeah, that's exactly how. First time, in the hot tub, naked as the day we were born.
The daughter just stared at us both for a beat. Then she looked down at herself, uncrossed her arms, and let them drop.
That was it. That was the switch.
After that weekend, she started walking around the house nude. Not all the time, not every day — but often. Mornings especially. She'd come out of the bathroom after a shower, towel in hand, and just not use it. She'd pad into the kitchen, grab a glass of water, and lean against the counter talking to me like it was nothing.
And she started to tease me. Not mean teasing. The little stuff. She'd bend at the waist to grab something from the low cupboard when she knew I was behind her. She'd stretch her arms over her head and arch her back slow, yawning, just to watch me try not to look. She'd sit on the couch with one leg tucked up, elbow on knee, chin in hand, completely bare, and ask me something dead normal like what I wanted for dinner.