Kaila's proper apology...

"What do you want then?" Kaila moaned against the carpet of one of the steps. She was glistening with excitement now, and her motions left no illusion as to what she really wanted.

"I think I want your sister..." I grinned, before slapping her ass once again, directly on the crease between her cheeks. My hand came away extremely wet, and the feel of her lubrication on my hand made my erection pulse harder. I could feel how much I wanted to just take her right there, but I wanted to drag this out a bit. Make her really earn it.

"Yeah, I think I really would rather have Carla," I raised my voice as I spoke, and was elated to hear the opening and closing of an upstairs door. I slapped her ass again, and was delighted to hear a muffled moan as I left both a handprint and the remains of her juice on her upper thigh. I felt her muscle quiver under my hand as I made the contact, and pulled back slowly, letting the touch linger.

"So, hope this is comfortable enough," Carla announced as she descended the staircase in her standard gaming attire of a white a-shirt and sweatpants. She bounced quite attractively as she rapidly descended the stairs.

"Not what I was expecting," I smiled, but found my gaze drawn to her exquisite shoulders and the ample curve of her breast. Damn she looked good, and so much like her sister. The smile on her face told me exactly how much she was enjoying the sight of Kaila moaning and begging for touch.

"I was thinking about making popcorn, this is getting good," Carla quipped at me before lounging against the couch in the exact position I had been in early. "Please don't let me stop you... I think you were teasing her mercilessly."

"No, he was about to fuck me..." Kaila gasped before a sting from my hand silenced it. "Don't pretend you don't want to fuck your pregnant wife right now, Brent..." Her voice dropped to that seductive tone she always used when trying to get something out of me. And dammit, she just hit my button... the thought of those two little lines was and instant aphrodesiac, and my hand naturally drifted to adjust the growing bulge in my pants.

"Probably shouldn't bother. Don't want to waste all that cream in a already full belly..." Carla giggled, her hands caressing herself as she watched me again punish her sister for a lie. Well, maybe it wasn't a lie, I DID want to fuck her, VERY badly, but I was enjoying the teasing and Kaila's moaning. "Course, I'm not quite wet enough yet..."

Carla made the exact same movement I had earlier, standing opposite her sister. She brought her hands around one of Kaila's thighs and stroked up and down, applying slight pressure.

"Fuck... she's really wet." Carla grinned at me. "I got her this wet before you know... Quite a few times actually."

"Don't tell him THAT!" Kaila gasped out before a soft slap from Carla silenced it. Carla began to lower herself alongside her sister, applying kisses to the soft red marks that were beginning to form.

"You like this Brent? You want to know how far we really went?" Carla whispered as she continued to kiss along her sister's thigh. "You think we didn't think about it? Soon as we found out about sex? How so few people even have the chance to make love to someone who looks... just like them."

"Fuuuck... don't say that again..." Kaila moaned, and I watched as her legs came even farther apart. It was too much and I undid my fly, allowing my now aching erection free.

"I think you should lube up my guy... After all, it's all the same isn't it..." That last comment was punctuated by Carla slipping a finger into Kaila's sopping wet pussy with a liquid sound. Kaila groaned happily in response, and as she did so slipped even further. "We're just a matched set, aren't we..."

"Fuuuck... Stop... just... Stooooop...." Kaila exhaled loudly, each moan punctuated by the soft strike of either Carla or my hand on her exposed flesh. The entire time, Carla continued to slip her fingers in and out of her sister's body, gently pulling on her inner lips before reversing direction and allowing her fingers to penetrate deeply.

"I love the way we taste, " Carla giggled, withdrawing her fingers and taking the moment to pop a fingertip into her mouth. "So... have you thought about what you've done?"

"Yes... OW... Ok, ok, fuck... what do I need to fucking apologize for... just.... just tell me! I'll do it!" Kaila threw her head back in frustration.

"You need to apologize for being a hypocrite," Carla snarled against her sister's ear. "What's good for the goose... is good for your husband, get it?"

Kaila's head nodded up and down rapidly.

"But not you... anybody else... just... not you..."

"Yes, ME, Kaila. I have given you everything else, anytime you wanted I did my best to make sure that you got it. Even when you went baby crazy, I agreed to help. So, Brent's RIGHT on this. If I'm having his baby, It's a lot more than just pretending to be you for a couple hours."

Kaila didn't say anything, her face taking on a strange combination of sexual frustration, exhilaration and fear. Then a soft smile crossed her face.

"NO..." She grinned widely at Carla, to a sudden swift retaliation.

"So... the hard way then..." Carla grinned right back.