"It just doesn't get any better than this, does it guys?", Alan said releasing his lungful of air. Bobbi chuckled and stepped up behind him, rubbing her hardening nipples into his back as her hands worked their way around his waist.
"Oh, I'm gonna bet that things get a lot better before the night is over..." Alan's sister laughed. "A lot better..." She moved her hands lower until she found Alan's semi-hard cock. Curling her fingers around it, she began to stroke it as she pressed her pussy into his ass. She turned her head to Sandy and Jeff and saw them staring at her hands manipulating her brother's growing cock. And she smiled when she saw that even Jeff's drained cock was growing as he watched her. Bobbi was happy that her little affair with her brother was now in the open. At least as far as Sandy and Jeff went. It wouldn't be a good thing to let the world know about it, but she was very comfortable with the knowledge that Sandy and Jeff could, and would, keep their secret safe. Sandy had revealed her own 'slut' side this evening and had even hinted at her lust for her own brother. And Jeff had proven his ability to keep a secret over the past few days.
Yes, Bobbi felt very good about what she was doing. She felt Alan's cock grow in her hand as she stroked him. She grinned at Sandy who was watching her hand intently.
"I hope you're not jealous that I'm rubbing your boyfriend's cock, Sandy..." she teased, turning Alan's cock so it was pointing in Sandy's direction. Sandy obviously didn't mind, and licked her lips as she watched Alan's cock grow in his sister's hand. She'd already shown that she loved to watch the others play every bit as much as they, themselves loved it. She grinned and shook her head as she moved beside Jeff. She reached her hand out and teased his semi-hard cock with her fingers.
"Not if you don't mind watching me play with Jeff, sweetie..." She wrapped her fingers around his cock, fondling him gently and smiling when she heard him sigh. "And I know you don't mind..."
Bobbi smiled back, enjoying the game they were playing, and turned her attention back to Alan. His cock was now fully hard in her hand, making her shiver with lust.
"I told you things could get better, Alan..." she whispered in his ear, "In fact I might just let you show these guys how much you like to fuck my mouth...would you like that?" Alan groaned and his cock grew even harder as Bobbi's stroking got faster and faster. She knew that if she kept up her stroking she could bring him off fast, but she wasn't going to allow him to waste his precious cum on the boards of the deck. Besides, he was right at the edge of the deck and aware of nothing but her hand on his cock. She simply couldn't pass up the opportunity...
"But first you're going for a swim!" Bobbi laughed, giving her brother a hard push. He yelled out and fell face first into the lake, surfacing moments later, sputtering and cursing. The deck was just a foot or so above the surface of the lake, and the water wasn't more than three or four feet deep there, but Bobbi had taken him purely by surprise. The other three were standing on the dock when he surfaced, holding their sides as they laughed and the mood was contagious. Alan began to laugh with them, but he was already plotting his revenge as first Jeff, then Sandy jumped into the water.
Bobbi held back, grinning, but knowing that Alan was going to make her pay for her cruel little joke. She giggled as he swam around like a shark, an evil grin on his face as he waited for her to jump in.
"C'mon, sis....it's like bathwater... You're gonna love it...", he teased. "Trust me...I'm not mad or anything... C'mon in..."
Bobbi was shrieking with laughter as she countered his moves, trying to find a safe place to jump in. She finally juked like a good receiver and, when Alan went to his right, she dove into the water in the other direction. When she surfaced, she continued to swim away from the dock, thinking that Alan would be right on her tail, but when she stopped paddling and turned, Alan was nowhere in sight! Her heart was pounding from a combination of excitement and exertion as she treaded water, scanning all around. She could make out Jeff and Sandy, but that was all... Where in hell was...
Bobbi screamed as she felt a strong hand grip her leg and pull her underwater. The suddenness of the action took her so completely by surprise that she didn't even have time to take a breath before she found herself underwater. She kicked and squirmed, fighting to get back to the surface, and finally managed, gasping for breath and spitting out water and sailor's curses as she tried to swim away.
Alan surfaced next to her, laughing and splashing her until he realized that his sister was seriously trying to catch her breath and stay afloat. "Alan!", Bobbi screamed, "You could have drowned me!!" She shot a glare at him and tried to swim away, but Alan swiftly caught up with her, wrapping his arms around her and hugging her to him as his strong legs kept them both afloat.
"One good turn deserves another, sis..." he laughed, holding her tighter as she struggled to get away. Finally, her initial fear dissolved away, as did her struggling and she warmed to the situation, even though she was still a bit angry. Alan's handsome smile helped relax her as he continued to hold her tight.
"You could have drowned me Alan,..." she repeated, although in a much softer tone of voice. "I didn't have time to catch a breath!" Alan laughed at her reasoning, refusing to let her go just yet.
"Oh... like I did when you pushed me off the deck!", he laughed. "One second you've stroking my cock and the next I'm Jacques fucking Cousteau!" Bobbi looked up at him and suddenly broke out in laughter. She wrapped her arms around her brother's neck and looked into his eyes as they both broke up.
"You did look pretty shocked..." she deadpanned, forcing them both to break up laughing again. Their laughter soon faded though, as the sense of their closeness entered their heads. Bobbi released her hold on Alan's shoulders, treading water in front of him as they both continued to chuckle. "I promise I'll never do that again..." Bobbi said seriously, smiling at her brother.
"Push me in the water, or stroke my cock..." Alan teased, swimming closer. Bobbi grinned and pressed her naked body against his. One hand moved between them and found his flaccid cock. She squeezed it lovingly as their legs pumped to keep them afloat and she sighed as she felt it growing immediately, causing her fingers to spread.
