"Welcome to our Ool. Notice there's no P in it." We've all seen that sign by people's backyard pools. It was cutesy back in the day, but has gotten a bit tired. And besides, you know "P" is still happening, sign or no sign.

The tiled message by Tori's and Eric's pool is different. With the "P" in a bolder color, it cautions, "Welcome to our Pool. Beware of P." I've had my suspicions about the meaning, and intend to confirm them today.

That's just a fraction of the spectacular tilework around their pool, by the way. Eric is a professional tile glazier and muralist, traveling regularly to install his work. That includes his own backyard, where he has created a band of painted, shaped tiles all the way around the edge of his and Tori's pool. Different sections feature different themes: mountains, deserts, African savanna, small towns, urban scenes, county fairs, various aquatic settings. They're quite artfully painted, with a deep crackle-glazed finish that adds immeasurable texture to the imagery.

In the deep end, away from younger kids' eyes, he's also placed some tiles featuring his trademark Fresnel lens treatment, which makes them appear as one scene from certain angles, and something else from other angles. Only when you swim into the deep end do these tiles reveal nude figures in spas and locker rooms, at beaches, in shopping malls, and even at dinner parties. These nude scenes aren't sexual, mind you. For erotic imagery, you must see the vivid Bosch-style ones upstairs in the owner's-suite bathroom, as revealed in my story "Tiles and Smiles."

It's now been a year since I started hanging out with Tori and Eric. And having sex with them. We started off with a spectacular threesome last summer (described in "Piñas Coladas" and "Poolside Pleasures"), in which they tested my tolerance for their various kinks before fully inviting me into their marriage. I passed the test, able to handle their sexual quirks: toe-sucking, food play, spitting, snowballing. Nothing too wild.

At the time, they let me know they also occasionally engaged in pee play, but that they didn't expect me to engage in that one unless I wanted to. They would never initiate it, and I would have to give the signal if it were to happen.

It's a scorcher of a summer day, as the three of us drink Margaritas and play naked in their pool, and I'm feeling even hornier than normal. Which is saying something, since we regularly fuck by the pool, and occasionally in it. Today, with respect to the ambiguous "P"-related signage, I feel like I'm missing out on something.

Also, I gotta pee soon.

So I finally ask about the sign.

"Dilution is the solution to pollution," explains Tori matter-of-factly. "We're not pretending there's no P in our Pool. Even if you were to let out a whole quart, it would amount to less than one part per million. That rounds down to zero. Basic math."

"Maybe I wanna see," I suggest.

"There's definitely no C in pool," jokes Eric.

"Are you sure, Joey?" taunts Tori as she swims up to me and strokes my cock, which is erect in part because I do have to go soon. She luridly breathes in my ear, "You could get ... wet."

"I think I'm up for it," I joke back, indicating my erection. "What better place to try watersports than a pool?"

"That's my boy," says Eric, moving up behind me and poking his own hard-on between my cheeks, his hand joining Tori's. "Babe, why don't you show him what you do when you have to go in the pool? You don't just let it go in the pool, do you?"

"Only if it's a public pool," she says scandalously, exiting the pool and walking out onto the diving board. "In our pool, I make Eric worship his goddess-fountain!" She sits on the very end of the board, her legs spread.

Nothing happens for a few seconds. "Wait for it ..." she giggles, and eventually lets flow.

Now treading water directly in front of her, Eric holds his mouth open and catches the piss-arc until it fills his mouth. He closes his mouth and shoots it back up at her, although it only lands on her legs and feet. Which I know he'd gladly suck on, being the proud owner of a foot fetish, if only he could reach.

Tori angles the stream towards me, and I catch some in my mouth. It's quite mild-flavored, all of us having followed the Weather Service's advice and hydrated well today. I spew it towards Eric, who manages to catch a few drops. Tori's streaming service is still active, though, so we continue the cycle, catching her output and spewing fountains into the air, getting more onto her dangling legs.

Once Tori's done, Eric and I engage in a hot piss-kiss while she walks back off the board and comes to the side of the pool. She sits on a towel and allows Eric to lick the slightly tangy fluid off the tops of her feet, while I work on her firm, shapely legs.

Then she lies back on her elbows, inviting me to stand over her. I spray her down good, focusing particularly on her tits, but also hosing the ass of Eric, who has knelt before her so she can blow him. He withdraws and starts jerking himself, at which point she directs me to aim higher so she can gather mouthfuls and drool them back out, running down over and between her boobs.

I dive between Tori's legs, briefly savoring the scent of her sopping bush and the taste of her cunt before Eric sprays his semen all over her torso, creating a yet different mixture. He gathers a big mouthful of this limoncello, then takes my prick in his mouth, leaving most of it on my shaft. "This combo makes really good lube," he explains, proffering his ass.

That's all the hint I need, slurping up my own creamy mouthful from Tori's chest and applying it between Eric's parted cheeks, working at least some of it into his asshole with my tongue. His sphincter seems to flex and loosen in response. In no time at all, my greased rod is buried to the hilt in his hot hole. And filling it in not much more time than that, thanks to this highly stimulating activity.

Although fine with a little P in their pool, Eric and Tori would like to minimize the cum in there, so we head over to the outdoor shower to clean each other up. Then, having spent all of our various fluid reserves, we each start another 'Rita to wash the taste out of our mouths. For now.