They rinse off

~The three friends are tired, confused, and most of all, sticky. The night's escapades have left them covered in sweat and sperm, the latter having dried into a film across the surface of Allison's bottom and lips. She also has some from Marcus, who pulled out just in time to spurt on her belly and the underside of her tits. There was no lack of 'friendly fire' though either, Marcus' legs are covered in Will's dried cum. Will had exploded onto Alli's back, and still had enough to unload on his friend. Will surveys this, noticing Alli is pulling her shirt down at the hem, in an unsuccessful attempt to cover her ass. The shirt stuck to her skin at the points that got doused.

"Well, we've gotta get cleaned up before we do anything." Will says. Looking at his friends.
"Okay, but I gotta set some fucking groundrules, dammit!" Allison shouts, pointing an accusatory finger at the two of them.
"I'm going to clean up over there." She tells them, pointing over to the far side of the cove.
"You guys gotta stay here." She indicates the area right in front of the camp.
"Look, I'm sure last night was just a fluke, I mean, Alli, you're not-, you're our FRIEND, Okay. We're not going to go over there and **** you or something" Will stammers out, blushing.
"I know that, look, it's just-just, go over there!" Allison responds, pointing at the cove near the camp, the she runs to the shore further down to clean off.

~Her rival seems to have left her potential mates, this could be a fine opportunity to seize one to take to her clutch, or maybe to eliminate the other egg-layer. Perhaps both. She slinks back to wait, trusting her instincts to guide her to the best decision...

~Will and Marcus wade out, Will is amazed at how warm the water is this early in the morning. They pull down their trunks and get to scrubbing. Will notices quickly that his erection is returning, and moves out to deeper water to hide it from Marcus, who appears to have done the same.
"Ummm, is this water warm to you?" Will asks.
"Yeah, it was yesterday too. Do you have a boner right now?" Marcus asks without skipping a beat. Will is turning beet red.
"Yeah, I really wanna fuck Alli again. Bad."
"Me too."
"But we fucking can't! What the fuck is going on! My dick hurts from fucking so much last night, and I fucking can't wait to have more, NOW!"

~Meanwhile, Alli is getting cleaned off down the shore.
"I don't mind the attention" she thinks to herself "but damn! Give the girl a break to recover!"
Her asshole feels like it's been hit by a truck, she sits down gingerly in the water, God! It's Freezing!
The sticky cum starts to get slippery, and wash into the water, but it stays on her hands, in her hair "jeez" she thinks, "how do you wash this stuff off?"
She looks up from the water surface, and is face to gills with a green, scaly woman with a body like a channel swimmer! Her naked breasts are pert and muscled a bit at the top. Her legs are long with thick hips and muscular thighs.
"What the fu-" She begins aloud, and she is snatched under and knocked ****.

~Will and Marcus are headed to shore, heads swimming with thoughts of fucking Alli silly. Bending her over, pushing her down, ramming it in, where is she! Both of them had scanned the shoreline hoping to catch her topless after saying they wouldn't, no sign of her.
Will feels something brush against his leg underwater.
"Did you see something in the water just now?" He asks Marcus.
Marcus, stops and grunts, closing his eyes. His shorts are still slung over his shoulder.
"Will, something -unh- just -oh- something's got my cock." his head tilts back and he releases a moan.
Will looks into the water and sees a dark form, vaguely human shaped, wrapped around Marcus' legs.Marcus puts both hands on its head.
"I'll help!" Will says, but not with much conviction. He's ready like hell to stick his dick in something too!
He strides over, awkward in the water, and pushes his shorts down to his knees. A hand wraps around his shaft underwater, it's immediate euphoria...

~She is working one mate into a frenzy, prepared to sample his seed, he'll not hold out much longer. The other approaches at the ready. She reaches out for him and is impressed! His member is quite large, still swelling in her hand. Quite promising. She needs to get them to the clutch, lead them to the cave, The egg layer seemed to be releasing seed into the water too, intriguing. She will use the egg layer to lead the other two in...

~Marcus begins to thrust. The creature is sucking steadily and is latched on, his whole cock is down her throat.
While she's sucking at the base, her tongue slithers out and licks his balls, the feeling is incredible! How can she hold her breath so long? It's like she's some kind of milking machine! Her mouth is so hot and wet, his cock is so DEEP, his balls begin to tighten.
Will is about to explode in her hand, that's not good enough! He drops under water,and swims to the lake floor, holding his breath. He gropes blindly and gets a hold of two firm ass cheeks, swapping his grip to her hips, he lifts her hips up and guides his throbbing member up and between her legs. She pivots her hips toward him, and he sinks right into her hot tight snatch. She is fucking TIGHT! Her ass and hips begin to slam backward into him, the water sloshing and generating a SLAP, SLAP, SLAP, as she picks up speed and rocks him hard! Will is suddenly not in control, but is still driven by instinct, the creature's ass is green and shiny, it's hard to hold, slick. He struggles to pull her into him and slam her hard, her tight pussy holds him, it feels incredibe! A low growl begins in his chest and escapes out his throat, he's about to explode! Meanwhile, Marcus can't hold out any longer,especially while watching his friend pound that hot piece of ass in front of him! He grabs both sides of her head and blows sticky streams of cum straight down her throat, she thrashes at first, then settles to gulping down, some of his load escaping as she releases his member and slams into Will three times in quick successon, squeezing Will's cock whit her Keigel muscles. Will's growl becomes a roar as he jets hot cum deep into her snatch, groping at her slippery bottom, he can't hold her as she slithers off of him, leaving him to finish spurting his seed into the lake.

The two of them are dazed, but manage to follow her form as it swins just beneath the surface of the water, away from them, toward the shore where Alli was! She looks back at them, as if making sure they're watching. Then picks up a body, Alli! and slings it over her shoulder. She takes her down the shore a ways and disappears into a cave entrance.

"We gotta get her!" Will cries, after he's regained himself. "I have an underwater flashlight at the camp,come on!"
"Wait!" Marcus stops his friend. We should at least hunt for a second entrance, this one's obviously a trap."

Do they charge straight in?
Do they look for an alternate entrance?