When swimming becomes fucking

Rose whimpered softly when, after a while, you pulled away.

"Come back" she whined.

"No, honey" you replied.

"Why?" Rose asked with a whimper.

"Because I'm going to take my clothes off" you said with a grin.

"Oh, that's much better" she replied, watching you take your wet shirt off. When your pants followed suit she grinned. "Go on, keep going" she said. Your flipflops followed, making Rose giggle. "That's far less important, but alright. Now drop your shorts" your girlfriend insisted. Just then Dawn came outside, a book and a glass of juice in one hand and her phone in the other.

"Oh!" Dawn said, "am I interrupting something?"

"No, it's fine" Rose replied while turning around to look at your sister, pushing her ass into your groin. "What're you reading?" your girlfriend asked as she reached out to pull your shorts down and free your cock.

"Oh, you know, just the latest chick lit" Dawn said.

"Urgh, I can't believe you like that crap" your girlfriend replied even as she reached between her legs to pull the fabric covering her pussy aside.

"What's wrong with it?" Dawn asked as she sat down on one of the recliners.

"It's always the same stuff. Poor girl meets rich guy who falls in love with her even though they aren't compatible at all" Rose said, suppressing a moan as you slid inside of her.

"Aren't you a poor girl who met a rich guy?" Dawn teased.

"I'm not that poor" Rose said, her hands coming to rest on the edge of the pool as if she was just moving closer to better hear what Dawn had to say. You moved with her, ensuring that your cock remained lodged in Rose's insatiable pussy.

"And I'm not that rich, Dawn. You know that" you told your sister as you slowly began to thrust into your girlfriend. Resting your hands on her hips, you fucked her at a leisurely pace. Lucky for you, Dawn had already opened her book and was reading while talking to you. Once again showcasing her smarts, but missing the obvious. Smirking, you bit down on Rose's neck playfully, making her moan softly. She just managed to stifle a moan by bringing her hand to her mouth.

"Doesn't really matter. You've got plenty of savings, don't you?" Dawn asked.

"Sure, but not enough to call me rich" you replied.

"And I'm middle class" Rose started before moaning, unable to clamp down on her moan.

"Middle class what?" Dawn asked, looking up.

"The genius over here stood on my foot" Rose said.

"Sorry" you said, smiling at her. "Kiss?"

"Only because you're so handsome" Rose replied, smiling as she turned her head so you could make out.

"Urgh, you two" Dawn said. "If I'd known you were canoodling I would have stayed inside."

"I can't help I love you brother" Rose said.

"Well, you could stop waving it in my face" Dawn suggested.

"Pff, as if" your girlfriend said. "I like having your sexy big brother as my boyfriend so why wouldn't I?"

"Because I'm his baby sister, maybe?" Dawn offered.

"Oh, please. Surely you can be objective and admit that he is a handsome young man?" Rose asked.

"Hold that thought" Dawn said just as her phone started ringing. "Hi Simone!" she said, getting up to walk inside again.

"You're horrible" you said with a grin as you pulled out of Rose and turned her around to face you.

"You know you love it" Rose replied, taking you inside of her again with very little problems.

"Fuck, you are so wet" you told her, kissing her hard as you resumed thrusting into her.

"All because of you" she replied.

"Flatterer" you told her, kissing her again while fucking her slowly. Just in case one of your family members saw you, it needed to look like you were just making out. Not that you minded, of course. Kissing Rose got your happy hormones flowing like almost nothing else did, other than fucking her. Smiling broadly at you, Rose obviously felt much of the same.

"It's true, though. Now fuck me, baby" she whispered, bringing a hand up to your cheek to tenderly stroke it.

"Yes, ma'am" you replied, thrusting as fast as you dared, which was still pretty slow. Rose still loved it though, judging by the soft whimpers coming from her mouth.

"Okay, I'm back!" you heard Dawn say. "Oh, great, more canoodling?"

"More? We never stopped" you told your baby sister as you kept thrusting into your lover.

"Why would we? You left, after all" Rose added. She just managed to stop herself from moaning out as you hit her G-spot just right, ending up orgasming , her entire body shaking in your arms. The gorgeous young woman's pussy contracting around your cock as if it was already devouring all the cum you would shoot into it sent you over the edge yourself. With a groan you spent your load inside of Rose, uniting the two of you in pleasure and love once more.

After your fuck in front of an oblivious baby sister, you lounged in the pool together. From your left Rose was looking at you with a smile.

"I love you, you know that?" she asked.

"I do" you replied, relaxing as you enjoyed the post-sex bliss and the water, closing your eyes. Next to you Rose slid closer, coming to rest against you.

"Aren't you going to say it back?" she asked with what you knew was a teasing smile on her face.

"Didn't I already?" you replied.

"You're the worst" Rose said.

"Fine. Rose, I love you too" you told her.

"Much better" Rose said with a soft laugh.

"Good" you said, smiling. You remained quiet for a while, just loving being together like this.

"Hey baby?" Rose asked some time later.

"Yeah?" you replied.

"So I've been thinking" she said.

"About what?" you asked, opening your eyes to look at her.

"Going on vacation. At first I figured one of the girls should come with, but now I have a boyfriend I think it should be said boyfriend" Rose replied.

"Oh, really now? Did you have anything in mind?" you asked.

"I do, actually" Rose replied with a grin. "I've been saving up for quite some time and now feels like the perfect time."

"But where to?" you pressed.

"The Caribbean" Rose said, smiling broadly.

"I'll chip in" you told her.

"I was hoping you would say that" Rose teased. "So are we in agreement? We're going to the Caribbean?"

"We might save money if we went on a last-minute trip, though" you told her.

"Oh, that's even better!" Rose said, obviously excited. "Let's check right now!"

Laughing as you watched Rose climb out of the pool, you did the same and watched as she towelled off with a big grin on her face.