Incest Seduction/Blow your brother in front of the party
Being paid to suck your brother's cock. Most siblings would never entertain that idea. It's a good thing you two aren't most siblings. Not since breakfast anyway. You've been struggling to get tips lately so getting paid to do what you already want to is pretty lucky. But it's also clear that you're expected to do this right here and now in front of everyone.
Zack seems pretty open to this. He wouldn't have taken his cock out if he wasn't. He probably wouldn't have before this morning, but getting drunk doesn't hurt either. You just wish you were drinking instead of serving so that you might have the same liquid confidence that he does. Instead you lean on Kim again. What would she do? You think you know, but... at a party? You let out a sigh. They didn't say how long you had to do it for, so you can stop whenever you want. Just suck him for a while and take their money. All you have to do is put on a show.
The moment you kneel down the small audience roars with cheers. Zack steps up to you and you get straight to business, wanting this to appear perfectly professional. But inside you're giddy. Your brother's cock is now the very first one you'll ever get to suck (and not just have shoved down your throat; thanks mom) and you have an audience to witness it. Granted, no one watching knows any of that, which is probably for the best.
It's not particularly hard to suck a dick, at least in theory. You put it in your mouth and do whatever makes him feel good. But you don't want to seem boring or inexperienced so you try to experiment right from the start. You extend your tongue and lick along the side of Zack's shaft, along the underside, around the tip, feeling a little silly but having a bit of fun and trying to give the crowd their money's worth. But the longer you lick him the more you get into it.
You spread your knees across the floor for better balance before drawing the tip of your brother's lengthy cock into your mouth. You can easily fit two hands on him to jerk him off while you suck on his wet tip, a fact you only consider as impressive after seeing that other drunk guy's dick. The circle of people watching you handle your sibling's meat steadily gets larger, the circle around you widening and growing. But it's only when you pull off your brother and glance around that you really get nervous. There are a lot of eyes on you now, fixated and focused. That girl was right. They all want you. Your brother helps by turning your head away from them and guiding you back onto his cock with a firm grip of one of your pigtails.
A moment later you very suddenly find that you are no longer blowing your brother. He's fucking your face. Yanking on your hair he shoves himself in all the way to your throat, jerks you backwards, then plunges into your mouth again. The first few are measured, relatively speaking, but then he goes to town. The only thing keeping him from slamming his cock all the way down your throat are your hands still gripping the base of his shaft. Even with that he's hitting the back of your mouth making you crane your neck and lightly gag, forcing you to stretch to find more room for him. But you sit and take it like a good girl. You would do anything to please your brother, and he knows it.
As suddenly as he started he pulls you all the way off leaving several stringy ropes of spit hanging between your lips and his dick. You cough and swallow, resetting yourself while the audience jeers and laughs some more. They are well entertained at this point. You could probably stop. If you wanted to.
You wipe your mouth with the back of your hand, your brother looking down at you with a grin. Shifting your knees even wider and leaning forward, you softly kiss the slit of your brother's urethra as you look up at him past your eyelashes and plant your hands on Zack's hips. He lets you take over from here, merely petting your head with his hand as you slowly draw him into your mouth again. Your brother just proved that you can take a fair portion of his enormous cock. Now you want to find out how much further you can go.
With long smooth bobs of your head you sink progressively lower as you suck off your sibling. You keep hitting that same spot in the back of your mouth making you pull off and interrupting your rhythm but you're determined to get past it. With a few wiggles from side to side, and a reflex that makes your abs tighten, you push your fears aside and force Zack into your throat. You've found one angle that lets him into your throat comfortably. You do still gag here and there but you do your best to suppress it, to put on a professional show for your audience. Really you're just so fucking horny you want to swallow his whole dick and you don't care what it takes to do that.
Once you find a path for him you start bobbing again, letting him slip into your throat. You stretch your lips further down his shaft wanting to suck and taste every inch of him that you can. You can feel your eyes watering and your stomach churning but you don't care. Your brother is stroking your hair and moaning his pleasure. You can feel his shaft flex against your tongue, no better proof that you're doing everything right. You've never felt sexier or more powerful, a whole room watching you swallow your sibling's colossal cock.
"Duuude! She's fucking drip-ping!"
That exclamation from the crowd reminds you that you're basically wearing nothing from the waist down, just the front flap of an apron that's hanging from your mid-torso. Down on your knees, angled forward to guide yourself, your legs spread, you can just imagine what the crowd is seeing; your bald pussy flashing from behind the flap, your pert little asshole with your lips parting beneath it. You swear you can feel a long slick pendulum of arousal drooling down from your slit before the latest coalescing drop splits from the end to fall to the floor, shortening the swinging string until more of your excitement can seep out of you.
Gawd you wish you could touch yourself. You wish you could cum with Zack's dick in your mouth. You wish he could fuck you. But you agreed with yourself that this would be professional. This isn't all for you, this is for your brother. Well, it's for money. But the fact that the whole room can see how utterly dripping wet you are is only making you wetter.
You've lost track of time but it feels like you've been sucking Zack forever. He sure is lasting a long while but that's probably your fault for making him cum so many times this morning. As you work him tenaciously, gratuitously, a few random dollar bills are tossed down beside you, apparently to keep you going. Some drunk girl gropes your ass with a laugh as she tucks a note into your garter. The crowd offers lots of encouragement, both to you and Zack, barking at you to suck him harder and telling Zack to jizz all over you.
Zack holds the back of your head to keep you on his dick when he finally cums, panting and groaning his pleasure. His hot load fills the back of your mouth and you swallow as fast as he can shoot. His clenching ballsack moves up against your hand resting at the base of his cock. Feeling it shift, you slide your hand under his testes and gently hold his scrote while it twitches eagerly to pump more semen into you.
"F-Fuck, Kimmy... Kim..."
You keep sucking even after he's dry, making Zack's body twitch along with his dick. The drunk crowd lets out a few scattered cheers and laughs once they realize Zack is finishing in your mouth, with many impressed that he actually came at all given how long it was taking.
Zack takes a woozy step away from you while some people pat his back and tell him how awesome that was, all while his deflating cock still hangs out of his pants. But Zack hasn't even been able to put himself away before someone new steps up.
"Hundred bucks, right? And you swallow?"