Keep dreaming

This time Michelle managed to take you inside of her young cunt before her sister came back. Usually it took Molly less time to get back to you when starting to play with her sister, but this time she needed some more time. Perhaps her favourite strapon harness was elsewhere, from the last time you'd dominated her sister. You kissed Michelle and spanked her ass.

"Oh, master, yes" she whimpered. "Make me yours!" With a smirk you take a hold of her chin, squeezing. Not hard, but enough to keep her face still.

"You already are. You have been ever since the moment I laid eyes on you and your hot little body" you told her.

"Yes, master" Michelle said, moaning as your free hand found her ass again to spank it.

"When I set eyes on you, I knew you were going to be my ****. My pet. My property. That doesn't mean I don't love you, of course, but in a different way. I married your sister. People don't marry their slaves. They make use of them" you told her.

"I love you too, master!" Michelle exclaimed, trying to kiss you. You stopped her with a grin.

"Those lips are only for kissing if I start it" you reminded her. "Otherwise they are for sucking cock."

"Yes, master" Michelle said, pouting.

"Here we go" Molly said, coming back in the room wearing her favourite strapon. It was as big as your cock but shaped like that of a horse. It had been intended to be demeaning to Michelle, but it just turned out that the younger sibling loved it. You hadn't thought it possible at first, but Michelle had become quite adept at taking both the real and fake cock in her holes, sometimes even at the same time. You would never have expected it of her, but she took it all like a trooper.

"Oh! OH!" Michelle cried out, cumming for the fourth time in a row as her big sister and you rammed her ass together.

"Honey?" Molly asked as she took a moment to catch her breath.

"Yeah?" you asked.

"I think you should breed her" she said.

"Yes!" exclaimed Michelle, "yes please!"

"No" you told your wife.

"Why not?" she asked.

"You first" you said with a grin, kissing your wife past a still-gasping for air Michelle.

"Oh yeah?" she asked.

"Yeah" you confirmed with a grin.

Molly was on her back, the strapon still jutting from her groin. Her baby sister was gratefully making use of it while you pounded the elder sibling's pussy over and over. Michelle had her hands on your shoulders as she bounced on the horse dildo and grinned at you.

"Oh, master, you can breed me, but breed my sister first, please!" she said.

"You want me to make her a mommy first?" you asked.

"Yes, master. That way I won't have to share you with her for a while" she said with a grin.

"You are a scheming little minx, aren't you?" you asked.

"No, master. I just want your cock" Michelle replied. Laughing you began pumping into her sister faster, making the gorgeous young woman moan louder with every next thrust until she, at least, came. The look on Michelle's face was what ultimately pushed you over the edge. With a groan you shot a thick, goopy load right inside of your wife's unprotected pussy.