She joins in the fun!

Your mother gives you a predatory smile, which makes your ass clench down on Crystal's cock. The sensation pushes your older sister over the edge, dumping the second big load of cum into your belly, joining the one from the younger.

Your mother turns to her daughters. "As the mother of the family, I should have been the one to introduce my son to girlcock... but I see you've both done a very good job, even without me. The early girl gets the boy, as they say." She kisses your sisters' cheeks and motions for them to move out of the way. Sarah and Crystal sit down next to you on the bed, cocks still dangling between their legs, while mother stands up in front of you.

"Go ahead honey, undress me."

With shaky hands, you pull down her skirt, and then her panties, to unveil her massive cock. Once the panties release their hold on it, you narrowly dodge the 14 inch erection as it swings to an almost 90 degree angle straight up, and stays there, dripping precum onto your face.

You were already weak in the knees, but now they give out completely.

"M-m-mom?" you can't help but stutter.

"Yes, honey?" She looks like she knows what you're about to ask.

"B-be gentle?"

"No promises."

She picks you up and cradles you in her arms. It's warm and comfortable between her breasts, but her cock is energetically poking at your butt.

You flinch as your ass cheeks are grabbed and spread apart, and you slide slowly down, invaded by the head of your mother's cock. It's huge, and pressing at previously unexplored parts of your anal walls, but it's not unmanageable. After a few quick breaths, you try to give your mother a kiss.

She drops you the rest of the way, impaling you on her cock. You orgasm instantly, but she lifts you up and does it again before it's finished. When it's time to start fucking in earnest, your mother's thrusts are faster and harder than anything you've dreamed.

Down below, the sisters are masturbating, fascinated by the spectacle.

"M-m-mooom I h-had no i-ide-a y-you w-were so g-good at th-thiiis!" You' stutter, no longer from nervousness, but the impact of her hips.

Your mother removes her hands from your butt to pull you in for a kiss on the mouth, letting her cock bottom out in your hole as it bursts forth a torrent of her womanly cum.

"Wow. We have a lot to learn from mom..." You hear Crystal say as you drift off into an exhausted sleep, pressed against the breasts of your loving mother.