Degradation for dummies, donations for damsels

"Our first priority is getting you to eat healthier," you explain, guiding your mother into the grocery store. Your hand is firmly on her colossal rear end, groping and squeezing her exposed ass cheeks as you walk: she's stuffed into a dress that can barely fit over her wide hips, leaving plenty of bare butt and thigh on display.

"What about exercise? I wouldn't mind getting out of the house more. Some of my friends go jogging--"

"You can't outrun a bad diet. Food comes first." As you enter the store, a group of girls around your age are chatting around what appears to be a large fridge on wheels. They're wearing matching vests, and one is even holding a clipboard--Obviously volunteers for some charity.

"Excuse me," the tallest one says, walking up to you. She's a rail-thin blonde, and as she approaches she flicks a hairband off of her wrist and begins tying her hair back. Under the red vest, she's dressed in short-shorts, a crop top... And kneepads.

Ah. THAT kind of volunteer.

"Blowjob, sir? It's for a good--Oh!"

All that Mom-groping has you good and hard, so you grab the girl by the wrist and pull her down to the floor. Dropping your pants and underwear in one smooth motion, you slap your cock across her pretty face.

"Sure. Just a quick one."

"Uh, awesome!" Despite your careless treatment, she puts on a half-convincing smile. "We're from Sperm for Widows, and--Gmph!"

Grabbing her by the ponytail, you bury your cock to the hilt in a single stroke. She's clearly a professional: no gag reflex to speak of, and she keeps looking up at you as you begin fucking her throat.

"Marcus! What are you doing?" Your mother puts her hands on her voluptuous hips, scowling at you. "Shouldn't that load be for me?"

"Relax, Mom... Ungh... It's for charity," you reply, running a hand along her shoulder... Then copping a feel of her heavy breasts.

"B-but she's young, and pretty, and--"

"And skinny, like you'll be real soon! Guh... Don't worry: you're gonna get plenty of spooge soon enough."

"Aw, thanks--I mean, that's not the point, I--"

"This is for widows, Mom. Why don't you stop being greedy and start doing your part?" With that you tug on her tit a little, urging her to get down on the floor as well.

Thinking that she's being asked to join the blowjob (and maybe steal away a bit of much-needed jizz), she obeys... Only to find you guiding her face towards your ass instead.

"Need something to lean on," you grunt, pushing your mother's head between your cheeks as you continue facefucking the blonde. "Be my chair, slut."

"Whuh--Buh um--Mph..." But I'm not part of this, she was probably about to say, before you **** her mouth against your asshole.

"First healthy eating lesson: if you spend time licking someone--Like their dick, or their butt, or whatever--You can fill up without putting on extra pounds. No matter how much ass you eat, you won't gain weight! Isn't that... Hngh... Awesome?"

Your rant raises a few eyebrows from the nearby volunteers who aren't getting their throats pounded, but it clearly has the desired effect: your mother stops resisting and starts licking.

Relaxing into the warm-mouth-sandwich, you lean back against your mother. She plops back onto her fat ass, bracing herself against the floor so that you can use her as a makeshift chair. Meanwhile, you don't let up on the volunteer's throat... And in fact, you decide that you could use even more stimulation.

"Hey Mom... Jerk me off," you groan, reaching back and moving one of her arms to the younger woman's neck.

She doesn't seem to understand what you want her to do, so you place her hand in the right place, squeeze a little, and start moving it up and down.

"...Mmph..." You can't tell if the moan she just made between your cheeks is one of understanding or of protest... But after you pull her hand up and down a few times, she picks up the motion herself. Before you know it, your mother is stroking your cock right through the volunteer's throat.

"Fuuuck... That's it... Gonna nut soon," you groan, placing both hands on the back of the poor girl's head and holding her down. "Y-yes, just like that--I'm gonna--"

"HEY!" One of the other young ladies marches over, holding a small insulated bottle. "Finish in here--Don't even think about--"

"Uuuungh!" With a mighty splch, you pull out of the girl, aim at her friend, and let loose. A few ropes of creamy white jizz splatter against her scantily-clad body, but she scrambles into position and the rest of your load goes in her container.

Meanwhile, Mom is struggling to support your weight--But since you didn't tell her to stop, she's still licking your ass like it's her job. That only makes you cum harder, sending a particularly-strong blast across the volunteer's face as she tries to hold the bottle at the correct angle.

"Oh yeah... Fuck... That was good," you moan, running a hand through your mother's hair. "Get up, fatty. Let's go shopping."

"Mph... Um..." Wiping her mouth, she looks up at you. "...You really shouldn't call me that..."

"It's called motivation, dumbass. How are you gonna get skinny without a 'lil poke in the butt once in a while?" Your eyes drop to her rear end, and your spent cock twitches. "...Speaking of which..."

"Uuuh..." Realizing where your mind's going, she scrambles clumsily to her feet. "No--You're right, hon. We'd better get going!"