Incest Seduction/Pull away from Stacy's vibrator
You hold out as long as you can but it's just too much for you. Instead of pushing the wand away you push away from the wand, laying back onto the chaise and clamping your thighs shut, shuddering with pleasure.
"Kimmy!" whines Stacy, no better than her kids. "You were so close! You can't stop like that!"
"But I... I did it..." you pant. "I c-came. I finished."
"You are NOT finished! You think you are but you're not." Stacy is emphatic but not angry. She's just very sure of herself. "You just hafta-- learn to-- fight through!" She waves her thrusting husband off, then gasps when he pulls out of her. "Okay... Okay. Uncle Richard? You need to help your niece. If you can hold her when she gets close then I can stay here and push her past this wall she's got. Just get through the wall... Through the wall..." she mutters to herself like some sort of mantra, putting the towel down where you were seated a second ago.
Richard moves beside the couch then drags you toward Stacy, sliding you onto the towel she's still spreading flat. You've barely come to a stop when he grabs your ponytail and pulls you sideways onto his dick.
"Maybe it will be easier if you have something to do."
His cock is still slick with Stacy's spunk and he smears it across your cheek before forcing himself past your lips. You don't know why you're fixated on that as he starts to jerk your head around, that he didn't even wipe his dick off before forcing it on you. He made you suck off his cum coated cock back at your house which was way worse, yet you’d say you even enjoyed that. You surmise it's probably because you haven't been given the chance to bask in the orgasm you just had before being pushed around again.
With that thought, Stacy starts in on your pussy for round two. The powerful vibrator is still set to where she bumped it to when you were cumming, a setting that is fiendishly strong. You put your hands on Stacy's head as she hovers over you still bent over like before. Try as you might you can't quite push her away with Richard's hold on your hair and his cock in your mouth. But your light shoving is annoying enough to make Stacy frustrated.
"Richard! You're not even helping! Grab her arms or something!"
Reluctantly he reaches down and snatches your wrists, pulling you away from his wife. He pulls your hands up beside his cock, holding them there with one hand so he can keep guiding your head with the other. He doesn't even pop out of your mouth the whole time. You don't try to make him either.
You've found you kinda like sucking cock. It weirdly makes you feel powerful, even when someone is forcing you to do it. Feeling that strong rod of manhood slide it's way down your tongue... It makes you shiver just thinking about it. But it's hard to even think about sucking dick when your entire pussy is vigorously vibrating.
You gave in so quickly to the vibrator the first time. Now that Stacy is forcing things your spiteful side comes out. The vibrator is crazy strong but cumming is as much mental as anything, right? You work as hard as you can to block your dirty thoughts, to deny how good this feels.
Movement behind Stacy catches your attention. You survey all around her from the corner of your eye, still forced to face Richard. Stacy has a funny look on her face, but her kids are there behind her. They're huddled right up to Stacy's ass with her bent at the waist. Aidan is saying something to his sister, showing her something. Kalli has a goofy smile and wide eyes. Then it hits you. He's holding her arm. He's ‘’moving’’ her arm. Aidan is making Kalli fist her mom, just like you did with him.
You can't see it but you can picture it perfectly. The image of Kalli's dainty little hand slipping inside her mother's messy cunt is too much for you to process. The sudden debaucherous realization breaks your will. You start whining and moaning around Richard's cock, your eyes slowly rolling back in your head. Your feet lift from the floor. Your thighs close as best they can with Stacy between them. And then you cum.
With one solid jerk of your head you rip yourself off of Richard's cock and release a high pitched squeal of pleasure. Then, just as before when the stimulation refused to subside, you start fighting. Your head tosses back and forth. Your arms flail as your legs twist. You scramble to get away but Richard holds you in place. It's all too much.
"I'm cumming! I'm cumming! I'm cumming!" you shout, desperate for Stacy to relent.
"Yes! Keep going! You can do it!"
You can hardly catch your breath. You slump back as your clit hums, shallow crackly gasps the best you can do to find more oxygen. Your thighs eventually close all the way around the powerful head of the wand, Stacy still holding it in place. But once she recognizes your pathetic form, withering and defeated, her compassion returns and she shuts off the wand.
Stacy sighs, disappointed, planting her elbows onto the chaise as her kids continue to play with her pussy. "I was so sh-sure she could."
Richard shrugs. "I dunno. Maybe she still can."
"Hmm?"
"Maybe she needs a different approach. Maybe she needs something inside her. Maybe an uncle."
"Hmm..." Stacy contemplates that idea with her kids exploring her. "But she's a virgin."
"Is she?" Richard replies. He sounds surprised, perhaps even guilty now. "Oh... uh, yeah, she is."