Family Vacation; Sibling Bonding - Sex Stories

Family Vacation; Sibling Bonding

... closed before she bounced back into Jackson's lap. Her scream drew the horrified looks of her parents, but when they saw her sitting in Jackson's lap, they relaxed. "Just stay there, Mere. At least until the rain eases up, okay?" Her mom said. Meredith was clutching the life jackets tightly, her face blank as she stared back. "Uh...okay." Jackson frowned. "What's wrong with you? You're fine. You aren't going to fall out." She snapped her head around, glaring down at him. "I know that. It's just... When I fell..." "Spit it out, Meredith. This isn't very fun for me either." "My bottoms came off," she blurted. "Your...?" He turned, spotting her pink bikini bottoms half inside the cabinet. Almost instantly his dick tingled, causing Meredith to turn back to him. "Gross, Jackson," she whined, trying to stand. "No, stop," he said, wrapping an arm around her. "It's just because you're on top of me. Mom said for you to stay put. Besides. No one can see you now. What do you think will happen if you stand." Meredith looked like she wanted to argue, but didn't. "Fine. Just, make it stop." "Okay, I'll try." But he didn't. Not even three seconds later, he was grinding his hips up into her ass, his arm holding her close. "Jackson, I'm not kidding. I'll scream." Meredith said, straining against his arm. He didn't listen he only started grinding harder, burying his face in between her shoulder blades. A few more passes had his dick coming through his slit in his shorts, and as soon as the ...

... head touched her velvety lips, she jerked up, but Jackson was quicker. He rearranged himself so his hard rod was free, sticking straight up when she came back down. Because she wasn't all the way wet, the shaft only went halfway in, but even that made him groan. Meredith half screamed, but her parents merely thought she was scared of the weather. His member didn't stay still, though. Between his rocking hips and the boat bouncing on the water, he was buried to the hilt in three more slams. By then Meredith's tight little pussy was wet enough for him to slide in and out with more ease. Each time the boat bounced on top of the waves, Jackson pulled his sister's hips down on his, making her moan each time he bottomed out on her cervix. The water got choppier as the rutting at the back of the boat became more loud. Their parents were oblivious to Jackson burying his shaft over and over inside his own sister, causing her to call out, but the sounds of the storm drowned her out. Jackson's hands made their way up to her bouncing tits, and Meredith dropped the jackets so she could brace her arms on his thighs. Now each time their bodies met, a wet smacking noise followed. Jackson felt the rings in her walls starting to contract as his dick pummeled her cervix over and over. "That's right, sis. Cum around my cock. Be my slut," he whispered against her neck, and she moaned in reply as her hips began to convulse. He picked up his pace, raising his hips off the seat to beat the pace of the ...