His Wife's Sister Ch. 02

"Amy," he said, pulling her face away from his. He looked into her eyes, straining for words. Not long ago he was hoping she would understand that he wanted her, now he was hoping she understood that he wasn't so sure. Her eyes searched his. He looked around the car, motioning that this wasn't exactly the right spot, or time for this. She stopped her grinding on his dick.

They sat there like that for a minute, quietly searching each others face. While she didn't speak, Mark felt that she understood his thoughts. He was grateful for that. Amy slowly licked her lips, composing herself. Then she slid off of him into the passenger's seat. She sat there looking at him, her dress still scrunched around her waist, her hand still on his shoulder. Mark felt agonized. On one hand, his hot 22-year old sister-in-law was half naked next to him. On the other, his wife's sister sat next to him. His wife's. Could he really cheat on his wife? And with her own sister? He knew he wanted to. But he knew that in some way he also didn't want to. Amy seemed to understand his reluctance. He wondered if she was thinking the same thing.

Then, suddenly, she bent forward. She took his still hard cock in her hand, quickly followed by her warm mouth. Mark moaned in pleasure as Amy bobbed on his cock again. She teased the head with her tongue as she removed it from her mouth before diving over it once again. She stroked the base of his cock as she sucked, increasing the speed after a short time. It wasn't like the last time she had sucked his dick. Then she had taken her time and prolonged his pleasure. This time it was more about getting him off than it was about the experience. Still, she was great at it and Mark thought it was one of the best blowjobs he had ever gotten.

Her head bobbed faster and faster as she grasped the base of his cock. She started to massage his balls with her hand as he neared climax. She used her tongue along the underside of his dick, making him shiver. He started moving his hips, bucking upwards in time with her strokes. As he felt the cum well up in his cock, he warned her that he was about to cum. She just kept bobbing and slurping on his engorged cock. Mark's hands clasped the bun on the back of her head, guiding it as it moved up and down in his lap.

"Oh yeah, yeah!" Mark moaned as the cum exploded from his cock into Amy's hot mouth. Using her tongue, she lapped up any cum that escaped from her mouth before swallowing his entire load. She licked her lips to make sure she got it all before licking Mark's cock clean. He smiled in amazement. He'd known a few girls that swallowed, but none were so proficient at it as Amy just was.

"You're amazing," he told her as she sat back up.

"Thank you," she coquettishly replied. Mark reached over and grabbed the back of her neck, pulling her mouth towards his. He tasted the salty residue of his cum as he kissed her. Slowly he pulled back.

"What are we gonna do, Amy?" Mark asked as she put her bra back on and pulled her dress back into place.

"Just take me home," she replied. Mark knew that wasn't an answer to the question he asked. He knew that it wasn't an affirmation or denial of anything. As Mark pulled into her parent's driveway, he looked over at his beautiful sister-in-law. She leaned into him, kissing him soft and slow. It wasn't a passionate, lustful kiss like they had shared before. It was a romantic kiss between two lovers.

Amy got out of the car and walked into her house. Mark stared at the front door for a long time before he pulled out and drove home. He had no idea what the future held for him, Amy, and his wife. He knew he shouldn't have done what he did, but he also knew it was a thing of the past. Amy shared his enjoyment of it, and they both soothed each other's guilt. It was an exciting, passionate moment, but Mark knew it was something that would best be forgotten. He wanted to fuck his wife's sister. But he knew that was probably as close to it as he would ever get. At least, it probably was.