All characters are at least 18.
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The girls were in the water when the guys arrived at the pool. As Kara had promised, they were dressed a little more conservatively than they had been the day before. The guys dove into the water and swam with the girls for a while. When they got out of the water, the four of them moved over to the lounge chairs and sat down. The two that Bob and Kara sat in were separated from the two occupied by Brian and Jill. The two couples engaged in separate conversations. The girls did insure that they were getting plenty of sun. Although the bikinis were fairly conservative, the girls had untied the strings while they were sunning themselves. When they turned their bodies from one side to the other, they did not concern themselves with keeping their boobs covered.
On several occasions, the guys got a good look at the girls' boobs. Although the girls had started out dressed conservatively, they managed to keep the guys' cocks hard for most of the time. Brian was in the pool when Kara sat up and retied the strings to her top. She jumped into the water and swam over to Bob and began to kiss him. She then swam over to Brian. She told him, "I'm taking Bob inside. We don't need you or Jill to come looking for us. We will probably be busy."
Brian had mixed emotions as he watched his sister lead Bob into the house. He was a little jealous that Bob was going to be playing with the same body that had given him so much pleasure earlier that morning; but he knew that this was something that his sister wanted. He was not about to deprive his sister the pleasure that she so much wanted and deserved. Brian looked up on the deck and saw that Jill appeared to be sleeping. He got out of the water and sat next Jill.
As Kara closed to door to her room, Bob asked, "Did you want to talk about something?"
Kara put her arms around his neck and said, "Talk is the last thing on my mind. I thought that maybe we could pick up where we left off last night."
Bob pulled Kara closer to him and murmured, "I was hoping that you would."
They began kissing and Kara was trying to maneuver them closer to the bed. Bob pushed her toward the bed and as soon as she was on the bed, Kara realized that their swimwear was still wet. When she pulled away from Bob and stood up, he asked, "What's the matter?"
She told him, "Our suits are still dripping wet. We're going to get the bedding all wet." Kara reached for the waistband of Bob's trunks and smiled, "Let's get these off now. It will just save you some work later and there will be less chance that you will rip my bikini." It was a struggle to get his wet trunks down over his hardening cock. Kara pulled them down to his ankles and when Bob was stepping out of them, Kara pulled at the strings on her bikini. Bob had played with that gorgeous body the night before; but it had been too dark in the car to see her clearly. Now, he was looking at it in all of its glory.
Bob just looked her body over for a bit and then started to take her into his arms. Kara pulled away from him again and Bob was beginning wonder if she wasn't starting to get cold feet. Kara reached into her nightstand and removed a couple of condoms and set them on top of the nightstand. She declared, "Now, I think that we have everything that we need. Come here." Bob took her into his arms again and they began to kiss.
This time when Bob tried to push her back down on the bed, there was no resistance from Kara. Bob's tongue was dancing with hers, as his hands worked on those large firm breasts. The thrill that he felt from looking at them paled in comparison to the fantastic rush that he was experiencing from the feel of those well-sculpted orbs. Those proud nipples were hardening in his hands, as Bob's fingers ran over that firm, unblemished flesh. When he moved his mouth over those tits, he thought that he would cum. He hoped that he could hold out long enough until she was ready for him to slide his hard cock into that lovely pussy.
Bob's fingers had been probing in Kara's wet pussy for sometime, when he suddenly removed them. Kara was getting worked up; but she wasn't ready for his cock yet. She was relieved when she learned that he was just removing his fingers to make way for his tongue. His tongue was working miracles on her pussy. Jill was the most talented pussy eater that Kara had ever experienced; but Bob was not too far behind. He was actually a little better than her brother was. Kara came several times while Bob's tongue was probing her pussy lips and her clit. When Bob reached for one of the condoms on the nightstand, Kara noticed how much pre-cum was leaking from the end of his dick. The amount of pre-cum that was leaking and the pulsing of his cock told Kara that he wouldn't last anytime at all if his cock was inside of her.
Kara took the condom from him and said, "You won't need this for a few minutes. If I let you slide that thing into me, you'll get off; but I'll be left hanging." She pushed him to his back and took his cock in her mouth. Kara had been right about how close he was to cumming; it didn't take any time at all for him to spew a copious amount of cum down her throat. When Kara had sucked him dry, she took her mouth off of his cock long enough to tell him, "Now, maybe you can last long enough to make me happy. We'll have that thing hard again in no time." She resumed sucking on that soft organ until it had reached its full length again.
Kara took her mouth off of that hard staff and rolled the condom over the end of it. She stepped over him and slid her slippery cunt over that thick spear. Although Bob's cock was not as large as her brother's, Kara still felt filled by that organ. She rocked up and down and back and forth on his cock. The blowjob that she had given him had given him increased stamina and Kara felt the thrills of several strong orgasms before Bob could hold out no longer. They fell against each other and enjoyed the post-orgasmic glow for some time.
About ten minutes after Kara and Bob went inside, Jill woke up. She noticed that her top had adjusted so that one boob was exposed. She saw Bob looking at it and asked, "Did my top move while I was sleeping or did you do that?"
"If I had anything to do with it, they both would have been exposed."
"Yeah, I can believe that. ... Where are Bob and Kara?"
"They went inside a little while ago. Kara said that we weren't supposed to come looking for them."
"She told me that she thought that she would take Bob to bed today. Think that's where they are?"
"I don't think it; I'm sure of it."
Jill thought for a few seconds and then told Bob, "When she told me that she thought that she was going to take Bob to bed today, she asked me if I planned to go to bed with you."
"What did you tell her?"
"I told her that it might be today; but it might be a couple of days. I think that your sister just helped me make up my mind. Let's go inside."
Jill realized how silly she looked with one boob hanging out and the other almost exposed. She pulled her top off, as she said, "It's coming off in a few minutes anyway; I might as well get a head start."