Fun Times at the Lake House Ch. 06

"Andy," Casey started. "I can't thank you enough for all your help since I twisted my ankle yesterday." Casey had her arm wrapped around my shoulder, using me as a crutch to get to the beach chairs by the water.

"It's the least I could do," I told her. "Besides, it's been nice spending more time with you lately."

"I know!" Casey said with excitement. "I missed you so much when we were away at college. This week's been great but I'm almost glad I hurt my ankle yesterday, we've got to spend some real quality time together since then. I mean, you even helped me into bed last night. That was so sweet of you." Casey paused for a minute and we stopped walking.

"You ok, Casey?" I asked. "Need a break?"

Casey grimaced towards her ankle a moment, then looked up to me. Her light blue eyes gazed into mine for a few silent seconds, and she smiled again. "No," she replied. "No, I'm alright. I just need to adjust a second." Casey hopped closer to me, her arm tightening around my shoulder, pressing her tight body into mine. "The sun is really hot today," Casey added. "Let's not stand here too long, the sand is burning my foot." I pulled her even closer to me, my arm around her waist. I could feel her pelvic bone under the curve of her hip, my fingers pressing into the knot of the side lace of her yellow bikini bottoms. How easy, I thought to myself, it would be to untie her bikini and finally see Casey's amazing ass. I quickly shook my head, trying not to think about that kind of thing about my step sister.

"Ok, this is better," she said, "let's move."

"Hurry up, you slow pokes!" Jess called out, lounging from her beach chair. "We don't have all day, you know!"

It was hard for me not to picture Jess naked at this point, either. The bikini she was wearing was absurdly thin. It was almost as if she was taunting me with it for having spied on her changing the other day.

"Ugh," I heard Casey under her breath. She looked to me again. "Another game Jess is going to get overly competitive with."

"What game are we playing again?" I asked her.

"I actually don't know. I assume some kind of board game, since I'm injured and all," she said. "It doesn't matter, I just hope we're all still friends with Jess after the fact." Casey and I laughed, and continued walking.

"Actually, we do have all day!" Casey shouted back, smiling.

Eventually we made it to the chairs and sat down. Taylor, Caitlyn and Jess were sitting already, bathing in the sun and admiring the view of the crystal clear lake as reflections of clouds and pine trees shimmered in the distance.

"Took you guys long enough to finish lunch and get your butts back out here," Caitlyn commented.

"Hey, don't judge, I'm injured over here," Casey retorted. "Besides, you and Andy took FOREVER to eat lunch yesterday."

My heart skipped a beat. I looked at Caitlyn, and she smirked back at me. Then I glanced to Jess, who just rolled her eyes. She chuckled a little bit, which was enough to tell me she couldn't be too upset with what happened between us, and a wave of relief washed over me. I easily could have seen Jess blurting out something about what actually took me and Caitlyn so long to have lunch yesterday, but she said nothing.

"Alright," I said breaking the tension. "What game did you guys bring?"

"What?" Taylor said. "I told you before we came out here to bring a game out. I thought you had one!"

"Oh!" I said stupidly. "I thought you were saying you were bringing it out. Sorry! I'll run inside and -"

"Forget it!" Jess said. "No way, we've been waiting for too long. If you go back in the house who knows how long it'll take you to get back out."

"Yeah, Andy," Caitlyn teased, "we don't want you disappearing again like yesterday at lunch time."

"Well, what do you want to play then?" I asked.

The girls all pondered a moment, thinking of games they could play without cards or a board.

"Charades?" Taylor asked. "I think that might actually be really fun!"

"Sure," I agreed, and everyone else nodded.

"Ok, since you were the last two out here," Jess said to me and Casey "it'll be me Taylor and Caitlyn vs. Casey and Andy."

We agreed, and set out chairs apart to split up the teams.

The game started out easy. We set the rules so that the one team picked the words the other team had to act out and guess, and the first few rounds had to be one word only. Acting out "Elephant," and "Camera," and "Scissors," were simple, but entertaining. Of course, Jess's team was the first to make things more difficult, especially due to the fact Casey and I were down a player. "Flossing at midnight," proved to be insanely hard for me to guess, but watching Casey try to mime "Midnight," was really funny.

"Time!" Taylor called out.

"Come on, Andy!" Casey said jokingly angry, drawing an invisible line with her fingers, then pointing to the center. "Middle," she said. "Mid. Mid-Night? Get it?"

"That was WAY too hard," I said. "Flossing was fine, but midnight? Come on!"

Jess, Taylor and Caitlyn were all hysterical with laughter. Watching Casey get frustrated while miming flossing at midnight was, with all honesty, really, really funny.

Casey hopped back to her seat next to me. "Alright," she whispered. "No more Mr." she paused, "and Ms. Nice guys."

"Want to give them something really hard?" I asked.

"Let's come up with something really embarrassing for them to act out. Who's up for their team?" she asked.

"Jess, I think," I said.

"Perfect. I think I have an idea." Casey smiled at me with her eyebrows raised. "Jess," she said, "we got it, come over."

Jess scurried over and bent down, and Casey whispered to her. "Enormous Bouncing Booty."

"What!?!" Jess exclaimed. "There's no way I'm doing that!" she laughed.

"That's the phrase," I said devilishly.

"You could always forfeit your point, of course," Casey said, knowing that for Jess, that was the worst possible scenario, even though their team was already ahead by 4 points.

"Fine," Jess said with a smirk. "I'll make you regret this."

Jess got back up and walked over in front of Caitlyn and Taylor.

"Ready," I called out, keeping the timer on my phone. "One minute, Go!"

Jess immediately turned around and bent over arching her back, giving everyone a great look at her ass, with only a thin strip of fabric covering her vagina. She turned to look at her teammates, and pointed to her ass.

"Bubble butt!" Caitlyn called out, immediately sprawled out with laughter. Jess sighed, and motioned to keep going with her hands.

"Ass," Taylor said.

"Booty!" Caitlyn called out a second later.

"Yes!" Jess said, then held up three fingers to let them know that was the third word, then one finger to indicate the first was next.

Jess put her hands up in front of her about a foot apart, then exaggerated the length to about shoulder width.

"Bigger!" Taylor called out. "Big! Large!"

Jess rolled her hand over, then spread her arms out as far apart as she could manage.

"Huge!" Caitlyn chimed in. "Gigantic! Enormous!"

"Yes!" Jess said. "Ok!" Jess thought for a second, then moved her hand up and down as if dribbling a ball.

"Basketball!" Caitlyn said. "Dribbling!"

"Uhhh, Baseball! Sports things!" Taylor yelled.

"Baseball!?" Jess yelled at her. "Seriously?"

"Sorry!" Taylor replied. "Other than Volleyball I don't really know anything about sports." Taylor and Caitlyn laughed while Jess looked sarcastically amused.

"Hey, this is charades people!" Casey said.

"Yeah Jess, no talking or we'll take away a point!" I agreed.

Jess started to refute this, then realized that would be more talking, and stopped. Jess paused another moment, and I knew she was contemplating weather or not she'd actually have to shake her ass in front of everyone.

"Twenty more seconds!" I called out, knowing Jess was too competitive not to go through with it.

I could see the anguish in Jess's face just before she turned her back to everyone again. Jess bent over at the waist, giving everyone a great view of her ass again, and started bouncing up and down on her toes. The hot sun caused Jess to sweat, and beads of water glistened over her back and legs. The view was mesmerizing. I couldn't help but think back to yesterday, how aggressively she slammed her tight pussy back and forth into my cock as I rubbed my hands over her hips and ass, and the heat from the sun reminded me of how hot Jess's pussy was. The longer I watched, the harder I started to become.

"Twerking!" Taylor yelled out.

"Yeah, Go Jess! Go Jess!" Caitlyn chanted.

Jess turned, annoyed she wasn't guessing as time was running out, and bounced up and down faster, her ass jiggling in waves around her thinly covered pussy. In my head, the faster she bounced her ass up and down, the faster I was fucking her.

"Bouncing!" Taylor finally said. "Enormous bouncing booty!"

"Damn it!" Casey said. "There was two seconds left!"

Jess stopped and turned around to celebrate with her team. When they calmed down, Jess looked at Taylor. "Baseball?" she asked.

Everyone started to laugh again, and when that subsided, Jess gave me a glaring look. "Andy, I think you're up this round."

I took a deep swallow, and walked over to get my phrase, knowing it was going to be as embarrassing as possible, but unsure of what to expect, all while still sporting a semi-erect cock from watching Jess. I hoped it wasn't too noticeable.

"It's time for revenge," Jess told me, smirking viciously. "Jerking off your tiny penis," she stated.

The words resonated in my head a moment. "No way. Absolutely not. Not a chance, this is not going to happen," I said. There was no way I could act this out in front of my step sister. I glanced over to her. She was smiling at me encouragingly.

"Come on, Andy! You can do it!" Casey said.

"Oh, I'm sure he can!" Caitlyn said, laughing.

I couldn't just give up. It was, after all, just a game.

"Fine," I said. "Give me a second to think about this." I hoped to try and figure a way out of miming 'Jerking Off.'"

"Nope!" Jess said. "Time starrrrrrrrttttsssss, now!"

"God damn it, Jess," I smiled. "I guess I deserve this," I told myself under my breath.

I turned towards Casey. I started by making a space between my thumb and index fingers, then gradually making the space smaller and smaller, until they were almost touching.

"Small!" Casey guessed. "Smaller. Tiny!"

"Yes!" I said happily, then realizing that was the only easy part.

"Oh god." I said aloud.

"Hey, no talking!" Jess said amused. I looked over to her, and Jess, Caitlyn and Taylor were all watching with anticipation.

Completely embarrassed, I pointed down to my cock, which was still bulging slightly under my bathing suit, and looked up to Casey, hoping she would guess right away and get it over with.

"Bathing suit?" she questioned, unsure about calling out other words.

I timidly pointed a few more times, and looked to Casey again. Casey, too, was sweating from the heat. Droplets of sweat glazed the tan skin of her chest, and I followed as several beads slid down her breasts into her the cleavage of her bikini top. I could feel my erection getting a little harder, pressing into my bathing suit. It wasn't helping that I had to draw more attention to it.

"Just call it out, Casey," I told her. "We need to get the points for this or it was all for nothing."

Casey hesitated a moment.

"Tiny Cock!" she blurted out. Jess's team let out a sprawling laughter, and I couldn't help but smile as well. I rolled my hand to tell Casey to keep going.

Casey laughed too, her chest bouncing up and down. "Dick! Balls! Penis!"

"Yes!" I told her. Caitlyn had fallen over into Jess's lap she was laughing so hard.

"Oh god, Casey. Say it as quick as you can, ok?" I told her.

"We got this!" she said encouraging.

"Fifteen seconds!" Jess called out.

My cock was even more erect now, and it pressed hard down the leg of my bathing suit, craving to get out. Watching Jess's ass before and now thinking about actually jerking off in front of my step sister was actually turning me on even more. I turned sideways, ignoring it for the moment, and focusing on the game. I reached out and wrapped my hand around an invisible cock in front of me, and made a jerking off motion with my hand, sliding it up and down. It felt like an eternity, but really it couldn't have been more than a few seconds.

Casey stared, mouth agape, obviously noticing my erect penis at this point. It seemed like she was speechless for the moment.

"Casey!" I yelled.

"Jerking off your tiny penis!" Casey blurted out again, and everyone started to laugh again.

I quickly retreated into my beach chair, glad it was finally over. Casey leaned over and kissed me on the cheek.

"Thanks for doing that!" she whispered. "Wasn't an easy one, but we got the point!"

My cheeks flushed red, but I was just glad it was over and I could finally hide my erection.

The game continued like this for the next two rounds, with Taylor unsuccessfully acting out "Deep throating a purple carrot," and Caitlyn, quite accurately, demonstrating "Dolphin sex," which was both completely hysterical and yet somehow very erotic.

"Casey, you're up!" Caitlyn called over, and Casey hopped over to the other girls, careful not to place too much weight on her injured ankle.

Caitlyn whispered something into Casey's ear, and Casey's look over to me was worrisome. They chatted briefly, Caitlyn smiling, and Casey's look becoming more flustered.

"Casey cautiously stood up, and hopped back over to me, standing only a foot or two away. I clenched my legs together to try and hide my erection again, even though there was no way she missed it while I was pretending to jerk off in front of her. "Oh god, I can't believe I'm going to do this," she said. "Sorry, Andy!"

I glanced over to the other girls. They were are watching intently. I looked back to Casey.

"No way it's worse than 'jerking off your tiny penis,'" I said joking. "Don't worry about it, just go for it, and we'll all have a good laugh afterwards. We got this."

"Alright," she said, still seeming concerned. "Ready when you are," she told Taylor.

Taylor held up her phone with the timer. "Ready!" she called out, "Go!"

Casey immediately turned around, swaying her curvy hips side to side, slowly moving closer to me and lowering herself onto my lap. I was so awestruck I forgot for a few moments we were playing a game, and I was supposed to be guessing what she was acting out. Her ass fell into my lap, her hips slowly churning around my cock, and Casey arched her back, placing her head next to mine and resting her entire body on me as she writhed around. My erection stared to get harder, and I could feel my penis stray away from between my legs as it grew, and it slid perfectly between Casey's ass cheeks as she swirled around in my lap.

"Come on, Andy!" she whispered wetly into my ear. "Guess!"

"Lap dance!" I blurted out.

"Great," Casey said, turning to wink at me. "One more."

Casey's body stopped its circular motions, and for a second I thought she was going to get up and act out another part. Still in my lap, my hard cock pressing into her, I felt her, just barely, move her body forward and back. I could feel her hesitation, and then suddenly she went all out. Casey thrusted her ass forwards and back. I could feel her warm, soft pussy gliding over my penis. The movements got faster and harder. I couldn't believe how great Casey's hot, sweating body felt on top of mine. Then I remembered I was supposed to be guessing again.

"Uhh, oh god," I said aloud.

"Ten seconds!" Taylor told us.

"Andy it's ok!" Casey encouraged me, even as her pace quickened with excitement. "Just like I did, just start calling out words!" Casey's voice sounded heavy and breathless, her chest moving forward with an exaggerated inhale. I couldn't tell if she was just tired and hot, or if she was actually getting off. My cock was becoming painful. I was aching to rip off Casey's bikini bottoms and thrust my cock inside of her, right in front of the other girls.

I shook the thought out of my head. "Uh, sex!" I said, and heard some snickers from the other girls. "Fucking! Thrusting! Grinding!"

Casey looked at me, her eyes widened.

"Grinding? Grinding! Grinding Lap Dance!" I yelled.

Casey let out a quiet, muffled moan as she stopped, almost collapsing forward into the sand, then collected herself, stood up, and fell into her beach chair. As Casey caught her breath a moment, I noticed her eyes fixated on my crotch. My cock was fully erect, nearly jetting out from my bathing suit. Casey's eyes slowly came back up to meet mine, her jaw hanging open, and I heard applause from the other team, and looked over to them.

Caitlyn, Taylor and Jess were standing up, clapping their hands.

"Now THAT, is commitment," Jess said smiling.

"Seriously, good job Casey," Caitlyn told her. "I didn't think you'd go through with that one."

Casey stood up and gracefully curtsied. "Thank you, Thank you," she said, and sat back down, laughing.

"Well, I think that's the end of the game," Caitlyn said. "We all forced each other to do something embarrassing. And besides, having sex with a dolphin really works up an appetite."

Everyone laughed, and Caitlyn, Jess and Taylor stood up and packed up their beach chairs. "We're going to head inside and help out your parents with dinner," Taylor said. "I told them we would on our last day since they cooked all our meals and paid for all our other food."

"You volunteered us?" Caitlyn protested. "I'm a terrible cook!"

"Well, just chop some vegetables or something," Taylor said, "I don't know! Just come help me and Jess."

"Fine," Caitlyn said, "but don't blame me when the food comes out awful, or I burn the house down or something."

The girls laughed and started towards the house. I watched as their hips and asses swayed and jiggled as they walked away.

"We'll be in a little later," Casey told them, and lowered her chair to lie back, closing her eyes. "I just want to rest out here in the sun a while," she sighed quietly, either to me or to herself, I wasn't sure.

I looked around. The girls went into the house, and Casey's eyes were closed as she lied next to me in the sun. No one else was around. My cock was still hard from Casey grinding on it and I couldn't get the feeling of her soft, warm pussy out of my head.

I looked down at Casey, peacefully lying down, as if dreaming, a light smile across her lips, her tight body sprawled out in the comfort of the sun. I decided the only way to get my penis to relax was another cold dip in the lake. I stood up and walked over to the water, and dove in.

The water was freezing as it had been all week, but it helped me relax. I swam around for a while, enjoying the lake, knowing it was the last day before we'd all head back home and part ways for school again, probably not seeing any of the girls until summer when school let out. I looked out over the horizon of pine trees, the sun dipping just onto the tops of them, and I realized it was getting a little late, and decided to swim back to shore.

Casey was sitting back up in her chair when I got out of the water, smiling at me as usual.

"I was wondering how long you were going to spend out there. I'm starving, but I need your help getting back inside!" She said. "I thought you were going to make me starve to death!" Casey playfully punched my arm.

"Sorry, I didn't realize how late it was getting until just now!"

I dried off and Casey held out her hand for me to help her up. I ignored it for a second.

"Hello, injured girl here?" she said, stretching her arm further out in front of her. "In need of a dashing young gentleman to save her from starvation?"