This is the next part of the story that began with "Brother and Sister" and introduced the characters of Suzie and Stephen. While it is not necessary to read that part to enjoy this story. It will give you the background on the characters. Enjoy!!
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"God that was great, sis." Stephen sat up on the bed, reached over to grab a cigarette from the night stand, lit it and inhaled deeply.
"The pleasure was all mine bro, believe me," Suzie giggled.
It was a few weeks since they shared a shower and they were still discovering new ways to pleasure each other. Suzie discovered Stephen loved to hear her talk dirty. Sometimes she would just call his cellphone and leave a nasty message. Stephen found his sister loved to watch him masturbate and he was glad to give in to her voyeuristic side. Neither of them dated much anymore. Why bother when they had the perfect sexmate in the next room.
"I wish you would stop smoking, Stephen."
"Oh come on sis. Not that again."
"Really. I would do anything to get you to stop smoking."
Stephen smiled and crawled next to her. "You already do everything sis." He kissed her and smiled.
"I'm serious bro. What would it take for you to stop?"
Stephen thought about this for a moment and then got an idea. "How about your friend Marcy?"
"What about her," Suzie asked.
"I want to fuck her. Actually, I want to fuck both of you."
"Marcy?!?" Suzie tried to sound shocked but inside her heart skipped a beat and she felt a tingle between her legs. Marcy was a friend of Suzie's from college. They took Sexual Psychology in the Twentieth Century together and she stopped by the house occasionally to study. Marcy was 5'6" tall with short strawberry-blonde hair. She had small but pert tits and an impish smile that always promised more. Suzie thought about what it would be like to watch her brother fuck her friend. To see her brother's cock buried in Marcy's mouth. Her pussy. Her ass. She had seen the way Marcy eyed her brother the last time she was over the house and rather then feeling jealous she found herself turned on. This could be fun, she thought. "Okay, little brother. You stop smoking and I'll make sure Marcy and I give you the night of you life. Two conditions though. One, you have to quit smoking for a whole month."
"And the second," Stephen asked.
"I want to watch you fuck Marcy before I join in. Deal?"
"Deal." They kissed on it.
Three and a half weeks later Stephen and Suzie were out having dinner. Suzie commented on how proud she was that Stephen hadn't even tried to sneak a smoke.
"Marcy's coming over to study Saturday evening," she said around a mouthful of salad. "That'll be one month bro. You ready?"
"Bring it on sis. I can't wait."
"You won't have to," Suzie replied. "I'll give you a preview tonight.
"Oh shit Stephen your cock feels so good!" Suzie was slowly grinding her pussy forward and back on her brother's cock. Her arms we folded behind her head and her hands her mussing her hair. "Oh, fuck me."
Stephen was looking at beautiful sister. Her tan skin and taut tummy. Her delicious breasts swaying slowly as she was rocking away on his cock. Her wet pussy was wrapped around his cock and massaging it slowly. "Oh god, sis. Yes just like that, I'm gonna cum. Make me cum sis. Make me cum."