Mommy pegs you

"Now arch your back and spread your knees a little wider," she instructs. "Lower your front down and press your head into the couch. Good girl, just like that."

She is now running her hands over the smooth skin of your ass, grabbing the flesh and slapping it gently. Then you feel it against your hole, sliding firmly against it. Your pulse quickens in anticipation.

"You need to show how much you want it," she tells you. "Show how much you want it by acting seductive. Arch your back, rub yourself back against it. Good girl, just like that. Now reach back and grasp it and guide it in as you push back."

You are so turned on, you hardly think as you do as she says. The new, bigger plug seems to have stretched you because you hardly feel any discomfort as you impale yourself on the thick cock, taking it deep into your ass. It feels so sexy slipping inside you and you instinctually start to hump back against it, grinding it slowly in and out of yourself.

You pick up the pace, twerking on her girthy cock, feeling her hips start to slap against your upturned ass. The rubber cock seems to be rubbing in the exact right spot and as you hump back faster and faster, you feel a heat spreading inside you. Everything in the world goes away and you are completely focused on the feeling of her cock slamming your hole over and over again.

Her hands grip your ass, digging into the flesh and she adds her own emphasis to the thrusting, and in moments the walk-in closet is filled with the sounds of ragged breathing and slapping flesh.

"You like that, you dirty, dirty girl." Rebeccah's mother growls as she plows her cock into you.

Your body is starting to glow with perspiration as you hump your ass back on mommy's cock. You do feel dirty. You feel like you want to be the dirtiest, sluttiest girl you can imagine.

"Fuck me, mommy," you breathe raggedly, gasping from the exertion. Your whole body is being jarred from the impact of her hips into your ass. Your hips feel like they are on fire.

"I'll bet you wish this was a real cock, don't you dirty girl?" mommy grunts as she slamms into you. And that's all it takes to push you over the edge. Your abused prostate starts to contract, clenching so strongly that you gasp and whimper out loud. Your little penis starts to squirt through the cage, jets of cum shooting through the slots of the cage onto the backless couch, mewling and grinding back on mommy's girthy cock. Your orgasm seems to last forever as you slow your backward thrusting and then eventually, with a whimper, collapse on the couch.

As you come back to your senses, you feel a cool hand caressing your cheek.

"You've made a mess on my couch," she whispers. "Clean that up, and then come lay down with me."

You watch in a daze as she walks over to the doorway of the closet. She's removed the harness and is wearing only her bra and panties.

"Use your mouth," she says, looking over her shoulder, smiling wickedly.