Sweet, sweet icing

“Gch... G-guh?”

Your mother chokes a little mid-swallow before coughing up some thick white goop, most of which splatters onto the wall in front of her. While the mystery substance is the right color, it doesn't quite look like semen: it's too thick and opaque, and it's sticking together in clumps. If you had to guess, you'd say it's some kind of cake frosting.

"Ish... It'sh s-so sweet," she sputters, leaning back from the glory hole. Your brother's dick isn't there anymore, nor is whatever container he was using to shoot the white goo into Mom's mouth. You see Cassidy shuffling around on the other side, and then just an empty stall.

"Don't waste any," you say matter-of-factly, thrusting slowly into your mother's ass. Her hole is tight and the scene before you is pretty amazing, but you can only reach orgasm so many times in one morning. "Not sure I can give you another load... Better make the most of this one."

"Y-you're still trying, though?"

"Mhm, totally," you grunt, giving her fat ass a squeeze. "C'mon, start licking."

She takes a deep breath, then presses her mouth to the bathroom wall. She's hesitant to lick the (probably filthy) surface at first, but the sweet flavor of the icing seems to help. Soon she's running her tongue all over the stray clumps, sucking down every ounce of the stuff.

You smile, still keeping a tight hold on her rear end. Just a few years ago, your mother was strong, dignified, and a total pain in your ass. Now she's licking a bunch of sticky frosting off the wall in a public bathroom, thinking and hoping that it's a stranger's jizz... While in reality, she’s being fooled by one son while the other fucks (and gropes) her butt.

That thought gives you a second wind, and before you know it your balls are churning. You thrust hard and fast for a few seconds, then suddenly let loose deep inside Mom.

“Unngh...”

“Oh! That feels—It’s hot,” she mutters, confused.

“Yeah... So fuckin’ hot...”

“No, I mean—”

“Sssh. J-just keep licking that wall, or it’ll all dry up,” you groan, squeezing out one last rope of seed.

“...Okay.” She keeps working for a minute or two, while you lie panting against her back. Finally, she clears her throat. “I think I got all of it, Marcus... Any chance you’re getting closer?”

“Sorry, Mom,” you reply, pulling out and slapping your cock against her cheeks a few times. “I know you really wanted to drink my jizz, but I’m spent.”

"That's not--"

"C'mon, lets go," you interrupt her, rising to your feet and offering a hand. "Cassidy's probably waiting for us."

The pair of you leave the ladies' room hand-in-hand; you even hold the door open for your mother, who's busy trying to wring cum out of her hair. Even after all her efforts to lick it up, her upper body is still plastered... Not to mention the load dripping out of her ass.

"Marcus?" As you let her pass through the door, she shoots you an odd look. "Why do you think that last dose was so sweet?"

"Dunno... Maybe you're just getting used to the taste? It could be an acquired thing, like coffee or ****? That would be awesome."

"Awesome?" She furrows her brow.

"Yeah, totally! You're gonna have to drink as much of the stuff as you can until the day you die. Don't you wanna like it?"

"I guess when you put it that way..." Mom smiles a little, and you give her a thumbs-up.

"Hey, guys!" As you leave the washroom, Cassidy approaches. His cock is still out, and he's holding something behind his back. "What's up?"

"Dude, your fly's open," you hiss, grabbing Mom by the shoulder and turning her away. In order to disguise the redirection, you spank her bare ass as hard as you can.

"Ow! Hey, what the--"

"Relax, Mom, just trying to get horny again," you say, before leaning over to whisper to your brother. "Dude, put your dick away before she figures out it was you. What the fuck did you feed her, anyway?"

He smirks and shows you what he's holding: it's a small plastic bag with a hole in one corner. It's nearly empty, but you can see some white goop sticking to the inside.

"Icing," he replies, pocketing the bag. "That black dude gave it to me. Says he uses this shit all the time to get sluts off his case... Y'know, when he wants to cum inside 'em or whatever."

"Huh?" Your mother's walking a few steps ahead of you, but apparently she overheard something. "What did you say?"

"Uh, nothing Mom," you reply. "Cassidy was talking to some guy about how to make his semen taste better, that's all."

"Oh... Oh, yes!" She nods enthusiastically. "That man did taste good--Uh, I mean... What did he tell you?"

Cassidy hesitates, so you cut in again. "He said it's just a matter of getting used to it. The more cum you drink, the better you like it. Guess I was right, huh?"

"Right... Okay." She turns back toward the path, looking thoughtful.

"Nice save," your brother says, nudging you with his elbow. Then he looks at Mom, making sure she's far enough ahead that she won't overhear. "Hey, I've got something else I wanna talk to you about."