"Thank you so much, mom!"

"I'll wear it proudly!" You tell your mother in gratitude and snap the collar in place.

She lovingly kisses you on the mouth and hugs you close. Her big, flaccid cock snakes its way in between your legs just like her tongue in your mouth. Once again your feet are off the ground. The kiss continues until both of you need to breathe, at which point your mother lets you down on the floor.

The kiss left you with a boner, but your mother is satisfied for now. She puts her cock back in her panties and readjusts her skirt so everything is in place.

Seeing that reminds you of your own nakedness. "Mom? I kind of need to go get my own clothes, but my sisters are in my room. They're probably still horny..."

"Don't worry about them honey. If they try to do anything to you, just tell me and I'll come rescue my little boy." She winks at you. It's cheesy, but you appreciate the gesture. "Also, never mind the clothes."

"Huh?"

"Well, of course I expect you to be naked around the house from now on. At most, you can wear a sexy apron when in the kitchen, but I want a clear view of my son's cute butt at all times."

"R-really? Is that necessary?"

"Certainly. Mommy needs easy access to her little fucktoy since his butt is going to get pounded all day. Your clothes would only get in the way of my cock." She caresses your cheeks.

Well, that's it then. You'll be walking around your home naked, prepared to at any time bend over and be penetrated without any foreplay, a **** to your mother's needs. It's... incredibly exciting.

Your mother shuffles you out the door, humming a happy tune.

When the two of you enter the living room, your sisters are there waiting. They clearly heard all the moaning and slapping of balls against buttcheeks earlier, and want to know what exactly is up. Trying to pretend nothing happened would be pointless, considering the collar displaying its clear message. Besides, you smell strongly of sex at this point, and your mother jumps at the chance to explain who you exclusively belong to from this point on.

Sarah takes it in stride, but Crystal is clearly jealous of mom. She looks away from her and frowns. Mommy is too happy to notice.

"Oh, I just have to take a picture to remember this by! Now where did I put my cellphone?" Your mother heads back into her bedroom to go look, leaving you alone with your predatory sisters again. Crystal immediately sneaks up to you to insert a finger into your butt. "When mommy's away, the sister will play" she whispers into your ear, before twisting your prostate and forcing another orgasm out. "Whenever we're alone, you'll be my bitch Doug..."

Mother comes back with the camera to see the mess you made on the floor. After chastising Crystal and making her clean it up, she makes another decision: you are to wear a condom when inside the house, to prevent any accidents. "Here" she says and puts one between her lips, "I'll put it on for you this one time." You can hardly believe it when she bends down and wraps those luscious lips around your cock, using her tongue to slip the condom onto your unfortunately limp member. "Make sure it's there when next I want to fuck you, ok honey?"

She holds up her cellphone to get a full-body shot of her son, a boy covered in cum and wearing a MOMMY'S LITTLE FUCKTOY collar, visibly proud of and excited to live up to the title. Click!

Indeed, over the weekend, your mother sticks her dick inside you at every opportunity; when watching tv, doing homework, washing the dishes, when you go to the bathroom to pee... if you try to sneak around the house undetected she takes it as a challenge and finds impressive ways to invade your butt when you least expect it. One second you think you're alone, the next you're bouncing in the air from the thrusts of her cock. The squeals you give out in surprise satisfy her immensely.

By the end of the day, your condom has filled up completely, as has your stomach. Also because your mother has kept you so busy, Crystal still hasn't gotten an opportunity to fulfill her promise.

You even stay in mommy's bed at night, receiving loads of her cum until she falls asleep, and then again when she has wet dreams. You have to cover your mouth so she doesn't wake up from all the squealing, but after a while her thrusts become oddly relaxing, allowing you to drift off into sleep.

On Monday morning, she follows you into the bathroom, fucking your mouth absentmindedly while you sit on the toilet. After you've emptied your bowels of motherly cum and finished her blowjob, she sits down on your legs, facing you while peeing between them into the toilet bowl. "Oh, good morning, son. Ready for a day at school? If you wear that collar, I promise the girls will leave your butt alone. When a boy belongs to his mother, girls know they risk her wrath if they fuck him without permission."

Coming out of the bathroom, you realize wearing the MOMMY'S LITTLE FUCKTOY collar while at school would certainly make your status as her buttboy official. Very official.