Note: Have you ever called someone chicken to get them to do something? Well these brothers and sisters take chicken to the taboo level. Enjoy and all rights reserved.
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Summer looked down at the hot tub from her room and saw her younger brother Adam sitting alone in the bubbles. She had just returned from college last week and had not really spent that much time with him so since their parents were out she quickly put on her white bikini and headed down to join him.
Adam was leaning back in sensual thought about the foreplay session he had with his girlfriend Tess last night. He had finally got to third base with her and may have gone further except her twin brother was in the house. Now as he slowly stroked his six- inch manhood he remembered how his first touch of a girl's pussy felt like.
"Got any room for me?" Summer asked as she exited the sliding glass patio door.
Adam jerked his hand away from his hard-on and quickly sat up looking like he was caught with hand in the cookie jar. "Shit you scared me. I'm not use to you being around." His eyes captured the fullness of her breasts and the flat abs above her tiny white bikini panties.
"Sorry," she grinned. "Just pretend I'm not around for the next six weeks." She sat down on the edge putting her feet into the water. "It feels really hot." She was surprised that his upper body was really developed since the last time she saw him without a shirt on.
"That's why they call it a hot tub," he laughed. His eyes focused on the tiny triangular white patch between her slightly opened thighs. He thought he could see the indentation of her pussy lips but wasn't sure. It prevented his cock from going down.
"Smart ass," she said as her butt slipped forward and her body slithered into the steamy bubbles. "That feels so good."
The hot tub was not that big so when she leaned back onto the underwater seat her feet moved forward and brushed against his. She smiled when he jerked his feet back. "So when am I going to meet Tess?"
"I was going to invite her over tonight but she had a family thing to do," he answered.
Summer had always teased him in the past about his girlfriends. "So, how far have you gotten with her?"
His eyes opened wide. "I can't believe that you asked me that."
She grinned. "Second base?"
He grinned back. "Maybe. How far have you gone with Jack?"
Summer moved over until the underwater jets splashed into her opened crotch. "You tell me first." She didn't believe that he would do it.
"Second base for me and third base for her last night for the first time," he said proudly.
"Really so that means you have not made a home run yet. My baby brother is still a virgin."
"For now," he smiled. "Your turn."
"I've been around the bases a few times with Jack," she answered.
"Blow jobs too?"
"ADAM!" She gasped loudly. "I can't believe you asked me that."
"Chicken."
"You know I'm not a chicken. Ok I'll tell you. He wants me to do it but I haven't taken that step yet. Have you with Tess?"
"No, she has just touched me."
"Oh you poor baby. You still have to take care of it by yourself." She was getting hot and moved up to sit on the edge again. She saw his eyes looking intensely at her breasts and glanced down to see her nipples pushing outward. "Is that what you were doing when I came out?"
"You are not going to embarrass me like you always try to do," he grinned. "I'm eighteen now."
"Well were you jerking off?" She looked directly into his eyes.
He looked back without blinking. "Yes."
"That's cool," she said slightly embarrassed. She leaned back on her hands which pushed her breasts outward.
Neither said anything as he knew now that the indentation was definitely the shape of her pussy lips.
"I guess I'll be doing the same since Jack is away for the summer," she said with her eyes closed. She waited a few seconds for his reply but it didn't come. She peeked out and saw his body leaning back again and his eyes closed. Her eyes opened wide when she saw his right shoulder and arm moving slightly. "Oh my god, are you doing it now?"
He didn't open his eyes. "Yes."
"Adam, are you crazy? You shouldn't do it while I'm here." She had never seen Jack masturbate so this was a new and exciting thing for her.
"Chicken." It was something they had said to each other since infants. Most of the time it meant that they would not back down. "Are you afraid to do it too?"
"You're sick," she said feeling light headed and excited. She watched his arm moving and wondered how big he was. She started to turn and climb out of the hot tub until he spoke.
"Chicken."
She turned and glared. "I'm not chicken. It just something that brother and sister do not do in front of each other."
"Whatever. You are a chicken so just accept it."
Summer took a deep breath and turned down into the water. She looked into his eyes and reached her right hand down over her navel to the top of her bikini. She stuck out her tongue as her middle finger snaked under the top of the white triangle and then into her damp pubic mound. "I'm not chicken."
Adam sat up and tried to look into the water but the bubbles prevented him from making out anything in detail. He had peeked at his sister growing up and now here she was sitting across from him masturbating.
Summer rubbed over her raised clitty and was surprised to feel it as big and ready as ever before. She knew that they could not see each other but just knowing what they were doing under the water was enough to turn them both completely on. "Oh," she moaned.
Adam heard the moan and wondered how far he could get her to go. "Let's see how brave you really are," he said as he lifted his hips and pushed down his baggy dark blue swim trunks.
Again she was shocked. "I'm not taking off my bikini bottoms." She glanced into the water and could actually see the darkness of his pubic hair and the shape of his long pink hard-on. He looked enormous.
They settled back down into the self gratification until he spoke again. "Chicken."
"Mom and dad might come home early," she said needing an excuse. She could now see his hand around his cock moving up and down.
"They drove out to Aunt Nancy's house. They called before saying they had started dinner. It is at least an hour drive back. Chicken."
She knew that she should climb out of the hot tub but this was about the most exciting and nasty thing she had ever done. "Well I guess since the bubbles are on you really can't see anything." She grabbed onto the waistband on the bottoms and pushed downward.