Vicki's hands shot to her mouth as her eyes widened and she gasped in surprise. "Ohmygawd! NO WAY!" she practically squealed. "You're sleeping with Alluring Anne!?"
"Well that
WAS
the plan before you butted in," I say, giving her a withering look. Then I check my watch, she's supposed to be calling in soon. I grab my phone to make sure it's close for when she does call in and take the time to shoot a quick text to Liz to let her know of the changing development for the upcoming weekend. Naturally, my ever-supportive girlfriend... that was sarcasm by the way... laughed her head off in emojis. Makes me want to prank sex her with her own sister so that she can share in my misery... then again... both of them might like it too much. Rumor had it that Gerry had already done that to both of them... in the shower... in their own home no less. Have I mentioned that Gerry is a fucking bastard?
Anyway, I'm already dialing Annie up to let her know of the 'added guest' for this weekend. "Yeah, it's my sister," I tell her after laying out the initials. I see Vicki bouncing up and down excitedly out of the corner of my eye. I sigh and then add, "and she's a big cosplayer and a huge fan of yours."
"Does she want to be in the photo shoot with me?" Annie offers without even missing a beat. "I was planning on doing a lewd Kim Possible shoot this year and if she could throw it together, she could be one of the cheerleaders on Kim's squad. You can then be one of the evil henchmen who's captured us."
Vicki, overhearing this from my phone, squeals so loudly next to me that I'm sure my eardrum is ruptured at this point. "Yeah... I think that she wants in on that."
"Awesome! Can't wait to see you both this weekend! Annie says cheerfully before hanging up.
I pocket my phone and glare daggers at Vicki, who's smiling from ear to ear. "I already got the perfect outfit back home!" she gushes.
"I'm sure you do," I say sardonically. "You do realize that she does ero cosplay for her websites, right?"
"Duh," Vicki rolls her eyes like it's the dumbest thing I've ever said. Then she's smiling at me. "Well, now that that's done, wanna punish me for intruding in on your life like this?" She turns and wiggles her ass at me for effect. I groan and roll my eyes at that. "Aw, come on," Vicki playfully pouts, "you'll be fucking us both anyway for the photo shoot at the convention."
The fact that she's already caught onto that little bit of the photo shoot is disturbing. "You really need to get a boyfriend who's not me," I tell her.
"I know, but for now you'll do," she smirks. "Come on... plleeeeeease.... I'm horny!"
Hm... well, if she wants to be punished, who am I to deny her? I also remember that a 'congratulations' package came from Gerry that I hadn't had a chance to use yet since Liz wasn't here. Oh well, I guess I get to break it in with Vicki then. I walk into the dungeon room, grab a ball gag and a pair of fuzzy handcuffs, and then toss them out to her. "Strip, put those on, and kneel, bitch." Vicki squeals with glee as she proceeds to do just that. I shoot a quick text message to our parents letting them know that she's going to hang here tonight as we're going to watch movies to get costume ideas and they buy it hook, line, and sinker. They thank me profusely and mention that they can have some quality time together without having to bother Vicki. I lock the door just in case they get done bumping uglies early and decide that they want a fucking movie night with us as well.
Before all of this, just the mere thought of my parents having sex would've grossed me out. Now, to me, it's just Tuesday.
I grab the big ass black box and a black velvet bag out from under the spare bed and carry them out to the living room. Vicki is already naked with the gag on, and her hands cuffed behind her back. She looks at the box skeptically as I put it down in front of her. I lift the cover and unfold the flaps inside to reveal a sybian machine. Her eyes widen at the sight of it as I then reach into the bag to get the dildo attachment to put on top of it. I then point down at it with a wicked smile on my face. "Get on it, bitch," I command. To her credit, she stands up, stoops over the thing, and works herself down onto the dildo. Once she's kneeling again, I make sure that her pussy lips are spread on either side of the vibrating ridge and make sure that she's comfortable with the dildo up inside of her. Then I get more cuffs to make sure that she's cuffed at her knees and ankles to the thing so that she can't escape.
Then I turn the thing on.
Vicki arches her back and screams through her gag as she starts shaking as if she'd been electrocuted. Yeah, I might've turned it up a little high to begin with, but I also know that she can take it as she's been talking about using hitachi wands with Stacy. While she's screaming, writhing, and moaning on the sybian, I'm standing behind her taking my clothes off and then grabbing a bottle of lube from the bag to rub generously on my hardening cock. I then bend her forward, position my cock right at her puckered ass, and slowly push my way in. I can feel the sybian's dildo vibrating inside of my sister as I lodge my cock all the way up inside of her ass. The back end of the vibrating strip is tickling my balls as I just stand there hunched over her. My hand slides around the front of her neck to hold her as I then plant my other hand on her hip to slowly start to fuck her hind end. "Is this a proper punishment for you, slut?" I hiss into her ear while divorcing my mind between the intimate act and the fact that I'm doing my sister again.
"Mmm-hmmm..." Vicki whines submissively from behind her gag. Already I can feel her pussy and her ass convulsing as her body shakes. She's already cumming hard just from me doing this to her. It feels so wrong to be fucking her but at the same time doing it feels so damn fucking good. I'm so going to hell for this but if I am going, I'm going with a damn smile on my face. I fuck her ass with slow, methodical thrusts until I can't hold it anymore and I blow my wad up inside of her. She lets out a guttural moan and I swear that she cums again from me fucking her this way.
After we're spent, I turn the machine off, release her from her bonds, and carry her to the shower for us to clean up. We make out and fuck some more, getting off quickly, before we wind up sprawled out on the couch, under the blanket, watching some old-school anime.
Bubblegum Crisis
, if anyone's asking. Now we have some plausible deniability. Of course, that lasts only until the first nude scene that we come across and then we're fucking again. This time we fall asleep on the couch and stay there all night long.
*
The convention comes along a couple of days later and we're heading into Indy for the convention, checking in on Thursday night before the official start Friday morning. We get parked at our hotel and up to our room. The receptionist gives us a knowing look as she notifies us that our roommate is already checked in. One guy, two girls, and one queen sized bed. Yeah, I'm sure she's done the math in her head. Then again, a lot of these things happen at the conventions (or so I'm told) so she's probably jaded by the whole thing. Anyway, we lug our luggage and our backpacks up to our room and meet Annie.
After the initial introductions are out of the way, Vicki goes all fangirl on Annie, the two of them start talking cosplay, makeup, tailoring, and are talking a mile a minute that I soon just tune them out. It's not until they come back around to the convention schedule that I get back involved. "So when do I need to be at your booth to look scary?"
"Con security is going to be at my booth so you can do what you want to," Annie explains. "I only need you for the afternoon signings and the public photo shoot. The private photo shoot for the more not safe for work photos is Saturday night that I need you two to be at." She then smiles coyly. "And then we can come back here for the even more 'intimate' picture taking."
"And you're not at all troubled about Allen and I sleeping together before all of this?" Vicki asks.
"He'd told me about it and considering he's already sleeping with his possible future mother-in-law, sleeping with you is hardly a stretch," Annie shrugs. "Besides, it's not like I can cast moral judgements since I take off my clothes and do lewd and suggestive sets for guys to jack off to for a living." She laughs. "Hell, I think that I might up getting more sales if they know that I have an actual brother-sister model pair for this one! You should've seen the revenue I got when I did a suggestive stepsister set one time." She eyed us and then eyed the bed. Then she stood up and took off her t-shirt, exposing her white bra clad C Cups underneath. "In fact, we should probably have a little bit of an ice breaker session before the lewd shoot on Saturday, don't you think?"
I'm grinning as I follow suit by removing my clothes as well. As we're undressing, we're eyeing Vicki who hesitates for a moment and then does the same. Oh sure, NOW she fucking goes shy and prude on me. Annie goes to her first once they're naked, taking her by the hand and dragging her onto the bed. There they cozy up to one another, laying on their sides facing one another. I've been involved with a few threesomes at this point to know to keep out of it until invited in. So I stay sitting on the couch in the room while I watch them make out. It starts off with soft, tentative kisses at first and then Annie casually caresses Vicki's bare thigh. Vicki moans softly into Annie's mouth as Annie then rolls her over to her back to take a more dominant role. Soon Annie has Vicki mounted and the two of them are humping and grinding against one another.
