Siblings learn to share

Jan had an itch that she couldn't ignore. It was a thought that was impossible to resist at this point. Her own internal arousal was like a volcano that was ready to explode with this new sense of dominance and the curiosity if Rick could feel the difference in the change in sexual partners.

With her fingers still inside of Kate up to her knuckles, she actually hooked her innards and pulled back on her sister so she would release Rick's cock from her mouth. Kate was confused if she had done something wrong. She looked back with hunger and frustration as Jan had a devious smile on her face. Kate's mouth and chin were covered in slobber, showing just how much she had been enraptured with her blowjob.

Kate looked backwards in frustration and a facial expression that said, "What are you up to? Just keep fingering me already! I need the release. Don't stop rubbing my clit!" But then Kate's eyes opened wider as she realized that Jan was pointing to Rick's dick and then motioning to Kate's pussy.

'What is she saying? Does she want me to fuck her husband?! Could I really go so far as fuck his massive dick!? Am I going to share her husband's schlong?'

She mouthed, "Are you sure?" to Jan.

Jan nodded slowly and mouthed back, "YES! I want you to fuck him!"

Kate's face flushed at the thought of what her sister was asking her to do. She just offered up her husband to share. Jan wanted to watch her husband plow her sister's aching, wet cunt. Kate's mind began to spin with a mix of fear, lust, shock, and desire. Deep down she had wanted this for years, but she always repressed the thoughts as too taboo to even allow. Now she was being given express encouragement from Jan to not only look at his naked body, but then to suck his dick, and now to outright fuck this gorgeous man that had been off limits for years!

The girls both stood beside the bed looking at their bound pleasure toy as he eagerly awaited his next direction. Jan leaned in to his ear and whispered something to him. He perked up and began to quickly struggle to slide his legs underneath himself. The binds on his arms gave him just enough movement to pull himself onto his knees on the bed. His head searching the room even though he still couldn't see anything. His hard pecker jutting out as he pushed his hips forward, expecting something to happen.

Jan motioned to Kate to get on the bed on her hands and knees in front of him. She followed Jan's direction. She spread her legs far apart as she slid her legs to the outside of his, giving him full access to her aching pussy. As she slid back she felt his slick cock touch her inner thigh, sticking to her skin. The anticipation was building as she thought of how Rick was about to enter her for the first time. She had never fucked another man other than her husband Stuart and she was almost **** with this erotic experience.

Before Kate could reach back to grab his member, Jan leaned onto the bed and slid her hand down Kate's stomach and cooch until she found his hard prick. She then grabbed it and firmly tugged it to get him to extend forward a little more as she guided his cock into Kate's soaking wet hole.

Even for his larger size he glided easily into her pussy with all the lubrication that had built up. Kate could feel the ridges of his cock press against her insides as she tired to relax an allow him to enter.

Rick could feel a slightly tighter sensation as he pushed his rod deeper into the pussy in front of him. He cocked his head to the side and gave a slightly confused look, unsure why things felt a little off. But as he pulled back and then pushed forward again his thoughts melted away into the tender, moist pussy that was enrobing his dick in the most luring grasp. With his limited movement he began to thrust his hips so he could better feel her insides.

Kate bit down on the bed's sheets as she wanted to moan so badly. His thrusts sped up and she began to feel her orgasm pick back up that had been so close just moments ago. Here she was, letting her brother-in-law fuck her craving pussy. She was sharing one of the most intimate things her sister had and she couldn't get enough of it. Her deeply repressed sexual thoughts about Rick finally released as the lust for his hard cock took over.

Jan looked on with a never-ending appetite as Rick tried desperately to pound what he thought was his wife. His constraints, the only thing holding him back from using his muscular shoulders to grab ahold of her.

Jan bit her lip, longing to hear Kate scream in pleasure. She watched as Rick bit down on the gag in his mouth, knowing that his animalistic desire was about to release. She pulled on one of the bindings and it released instantly under his strength. Without stopping his thrusts he used his free hand to reach over to his other arm and grant its release as well. He was completely loose from the headboard and he grasped for the body in front of him.