Moving Forward Together - Sex Stories

Moving Forward Together

... her finger moving into her sister's butthole.

Katherine was squirming with pleasure as her sister played with her butt. Before she knew it, Katie had a finger in her tight sphincter. All the sensations were too much for Katherine to handle. She groaned loudly and started shuttering as her body was rocked by and intense orgasm. Her vagina clamped down hard on Ken's penis, and her anus clamped down hard on Katie's finger. Katherine went limp and fell backwards.

Katie caught her nearly unconscious sister and pulled her off Ken's still hard penis. She helped Katherine move to the seat on the other side of Ken on the couch before looking back at Ken and smiling.

"What did you do to her," Ken asked?

"I don't know why I did it, but I stuck a finger up Katherine's butthole. It felt oddly sexy, especially when her anus clamped down on my finger," Katie explained.

Ken looked dumbfounded. Who knew his sister would cum that hard from having her anus played with. Ken just smiled and motioned for his youngest sister to join him.

Katie didn't need to be told twice. She was wet already, so when she straddled Ken, he easily went into her. Katie slowly sank down on his penis, savoring the feeling. Katie dwarfed her 'big brother,' so she made sure that she didn't put her full weight on him. "Are you okay," she asked? "I'm not too heavy, am I?"

Ken just looked into her beautiful eyes and said, "you're perfect, GG."

Katie felt her heart melt hearing those words from her ...

... brother. She smiled and started moving up and down on him. Ken loved the feel of his sister. She was, in many ways, a perfect match for his penis. He savored the feeling of her vagina as they had sex at a slow and steady pace.

Katie also liked taking it slow. For one thing, she didn't want to hurt Ken. For another thing, she enjoyed feeling him in her. The longer she could feel Ken's penis inside her vagina, the better she was. Katie briefly looked over at Katherine sitting on the couch beside them. She was still half-lidded with a smile on her face, enjoying the feeling after her intense orgasm.

Ken and Katie had been going at it for about 10 minutes. Ken started to feel the tell-tell signs of his orgasm. "Katie, I'm almost there," he warned her.

"I am too, Ken. I love being in sync with you! Just keep going," Katie moaned.

Their rhythm picked up as the pair of siblings edged closer to their impending orgasms. Katherine had finally come down from her blissful state. She moved over behind Katie and got down on her knees. Katherine stuck her long middle finger in her mouth and generously wet it. She then moved it to Katie's butthole and rubbed the moisture on it.

Katie was surprised to feel Katherine's wet finger against her butthole, but she was all too happy to allow her sister to return the favor.

Katherine wet her finger again before returning it to her sister's anus. She coaxed the tiny hole until she was rewarded with it granting access. Once she was ...