It was our last day at the resort and we were scheduled to fly out that night. Because of aircraft noise control laws at our destinations, our flights departed at about 11pm so that the aircraft could fly overnight and land just as the noise curfew was lifted.
Checkout time was normally 10am, so the resort wanted to charge us each for another whole day. Whilst this was understandable, we decided that we only needed one room to shower and get dressed (yes, we had to start wearing clothes again) before heading to the airport. The four of us agreed that Audrey and I would keep our room and that Wendy and Richard would vacate their room. Wendy and Richard would move their luggage into our room and we would split the cost of the final day.
Over breakfast, we had decided that we would spend the day, just the four of us, lazing on the beach. Half an hour later, Audrey and I were walking along the beach, hand in hand, we saw lots of people. Almost all were totally naked and obliviously so. There were a small number of women and adolescents that wore bikini bottoms. Women menstruate and some choose feminine hygiene products that adhere to garments, it was no big deal.
We saw women with small perky breasts, women with large watermelons and everything in between. There were penises everywhere, some long, some short, some with foreskins, some without, some were wide and some were skinny. The natural variability of the human species was on display for all to witness.
Audrey and I were heading back to the spot we had left Wendy and Richard and found that they were not there. A quick look around spotted them down at the water line. Just as we set off to join them, Donna and Charles from the party walked past holding hands.
"Audrey, Ben, Hi!" Donna said as she recognised us.
"Hello you two. Did you enjoy the party yesterday?" Audrey asked.
"Indeed we did." Charles replied.
"We were hoping to run into you guys before you left." Donna said.
"Yes, we were hoping to learn some more about your special bond with your sister." Charles said looking at me.
"We're thinking about giving it a try." Donna added gleefully.
"Perhaps we can reference Ben and Wendy in the future." Audrey commenced, "How about we chat about you two for a while."
"OK, where would you like to begin?" Donna responded.
"For example, you both seem perfectly comfortable being naked together. How did that start?" Audrey observed.
"Well we grew up in a warm climate and our parents never wore pyjamas to bed." Charles started off.
"OK." Audrey said.
"When we came along, we didn't wear pyjamas either." Charles continued.
"Same with our daughters actually." I said nodding in agreement.
"Mind you," Donna said interrupting, "if we had asked to wear pyjamas, I'm sure that our parents would have agreed. The subject just never came up."
"This meant that for the most part, our breakfasts were also consumed naked and we did not get dressed until after we had showered and we were ready to leave the house for the day." Charles said.
"It wasn't a nudist household per se, we just didn't feel the need to cover up in front of each other like other families did." Donna added.
"We did have one set of pyjamas each, especially for sleepovers. As we got older, I had girlfriends and Donna had boyfriends. All of that was fairly normal I suspect." Charles said.
"So what changed recently?" I asked.
"After finishing our degrees, through a complete coincidence, we ended up working in the same city. I had a spare room and Donna needed somewhere to stay so it just made sense that she move in with me." Charles continued.
"Very pragmatic." Audrey replied.
"It had been a while since we'd been naked together, but on the first morning I just absent-mindedly got out of bed and headed to the kitchen naked." Donna said.
"And when she got there, she found me buttering my toast, also naked." Charles added.
"I assume that 'buttering your toast' is not an euphemism." I added.
"You are correct, literally applying churned cream to my re-cooked bread." Charles confirmed with a nod.
"We looked at each other for a fraction of a second and then just went about our business." Donna said.
"During this time, we continued to date other people and carry on with our separate lives as per normal." Charles said.
"So something happened." I said.
"Yes. Our morning nakedness had eventually evolved into full time nudism. We'd get home from work and just disrobe rather than change into other clothes. Purely practical, nothing sordid until." Donna said pausing.
"Until Donna saw me with an erection." Charles admitted continuing, "Donna was working late and I was watching a movie. It wasn't a particularly erotic movie, she just walked in on the one and only sex scene in the whole movie."
"So Donna saw your erect penis?" Audrey asked.
"Yes, but I may possibly have been masturbating just a little bit at the time too." Charles said.
"A little? You were tugging at that thing like there was no tomorrow." Donna interjected.
"So how did you react Donna?" Audrey asked.
"You know, it didn't bother me in the least." Donna said, "The DVD was actually mine and to be totally honest, I'd masturbated to that scene once or twice when Charles wasn't home."
"I was fumbling for a pillow to cover my indiscretion when I saw what Donna was doing." Charles said.
"What was that?" I asked.
"She undressed, throwing her clothes onto the table next to the door and walked over to where I was sitting. She picked up the remote control, backed the movie up to the beginning of the scene and started to play with herself as she sat next to me." Charles said.
"We ended up masturbating together as a semi-regular event. We never touched each other, only ourselves, but we seemed to enjoy doing this together." Donna added.
"This was our private together time. We still dated other people and had fulfilling sex lives of our own. Sometimes when we were masturbating together, we'd describe our latest sexual exploit in erotic detail to see if we could get each other off. Whatever we did together, we never touched each other." Charles said.
"So how did you end up in your current predicament?" I asked.
"This is where things get a little more, um, complicated." Donna responded.
"It was Donna's turn to select our pornographic stimulation for the evening's proceedings. She's picked a streaming service with female-oriented content and selected what looked like a good one." Charles explained.
"As it turns out, the opening scene was a couple having sex on a bed, normal, everyday, missionary position sex." Donna said.
"There was a bit of dialogue, but who watches porn for the dialogue right?" Charles continued.
"It wasn't until after the closeup of their spermy mess that we realised that the characters were actually sister and brother and that they were living out a forbidden incest fantasy." Donna added.
"So you watched a porno on the internet and decided to give incest a try? Is that right?" I said intentionally confrontingly to gauge their response.
"No, not when you just blurt it out like that. We talked about it. We talked about it a lot." Donna replied.
"During our masturbation sessions, we decided to introduce a bit of reciprocal manual stimulation and see how that felt. That went very well." Charles added.
"We've been sleeping in the same bed for a few months now. I stress sleeping, we haven't done anything more that a bit of a kiss and cuddle." Donna said.
"Excellent restraint." I commented.
"Have you tried oral sex?" Audrey asked.
"Back in our room last night after the party was our first time ever." Charles admitted.
"Watching me ride Richard was just too much for Charles. He got a blowjob from one of the ladies there, but seeing me get fucked by Richard really turned him on." Donna said.
"And how did the oral activities go?" I asked.
"They went fine." Donna replied nodded at Charles in agreement.
"So what's stopping you from closing the deal?" Audrey asked.
"Well it's incest, isn't it?" Charles responded.
"I'm sorry to break this to you, but just because you haven't actually put your penis into Donna's vagina yet, doesn't mean that you have not already committed incest." Audrey responded.
"You think so?" Donna asked somewhat concerned.
"It sounds like the intent has been there for a while, probably since the time that you stimulated each other during one of your masturbation sessions." Audrey replied plainly.
"Congratulations!" I added helpfully.
"Really?" Charles asked.
"I think so." Audrey responded nodding.
"We've committed incest already?" Donna asked looking somewhat puzzled.
"Don't feel bad." Audrey started, "Listen, why don't you come up to our room with Wendy and Richard and see what happens. Do whatever you're comfortable doing, or not doing."
"Yes, the offer to watch Wendy and I still stands. We're not mutant freaks or anything. You can ask any questions you like and we'll answer them the best that we can." I added.
"When did you want to do this?" Donna asked.