Just you and Amy... with Sam's help
From Torg Adventure
"I think I could get used to The Threesome Rule," Amy finally says, looking up at the ceiling. "At least, it's a pretty small price to pay for more time with Sam."
"You're with me right now," Sam reminds her. "It's just that Max is sharing in the pleasure, too."
"And giving pleasure," Amy concedes. You can tell she enjoyed getting eaten out by you, just as much as Sam loved getting eaten out by Amy, even if it neither was receiving it from their preferred gender. She looks at Sam. "Is it too early to make arrangements for our time together then? I've earned it, after all."
Sam shakes her head, smiling sensually. "No, you haven't earned it quite yet. It's not a proper threesome yet. Just a lot of eating and stuff." Sam shrugs her shoulders. "Not that it wasn't a lot of fun."
Amy sighs, her generous chest heaving beautifully. "But no fucking so far. At least as you define it. I'd say we were doing some of that already, but I get where you're heading." She turns her gaze to you. "You're saying it's time for Max to do me."
Sam rests her hand just over Amy's tits, watching it rise and fall as her sister exhales. "Is that such a horrible thing."
Amy puts her hand over Sam's. "Probably not. I just never expected to have sex with a guy again." She smiles a little then. "Although maybe I should get used to the idea, if I want to keep having sex with you." She squeezes Sam's hand softly. You'd be jealous, except it sounds like you're going to be fucking her pretty soon. And probably Sam, at some point afterwards.
"So you're okay with this, right?" Sam asks.
"Yeah," Amy replies. "I mean, it's not like I've never had sex with a guy before. You seemed to enjoy it in the kitchen earlier. I might even get some fun out of it." Just as she sounds to be getting a little eager, her voice suddenly changes. "But he has to wear protection."
"No problem," you reply confidently, reaching for the strip of doctored condoms you had retrieved earlier. You kneel on the bed as you start tearing one of them off of the strip.
"Wait!" Amy suddenly sits up on the bed, sending Sam's hand off of her chest. "I almost forgot." She scoots to the side of her bed and grabs her backpack off of the floor. Pulling open a zipper, she sticks in her hands and pulls out a handful of about half a dozen condoms.
"They were giving these out in the student union the other day," Amy says, holding them up. "They shoved some into my hand, so I just shoved them into my bookbag. I forgot about them until just now, because I wasn't expecting to use them.
"But... I went all the way to my room to get these," you say, a little weakly. And you went to such trouble poking holes in them a few days earlier.
"It's not like I'm going to use them any place other than here," Amy says, dropping them onto the bed. "Besides, these are just as good as yours, right?"
"Yeah, a condom's a condom, isn't it Max?" Sam picks up one of the condoms from the bed, flipping it over to look at it. It's a different brand than what you had brought, although it looks to be of equal quality. At least pre-tampering. But Amy doesn't know you tampered with yours, and Sam doesn't seem to know either. Or at least she is hiding it well. Either way, your trying to insist on using yours would look suspicious, and possibly mess things up.
"Yeah," you say, trying to sound indifferent. "Amy's are as good as mine, I guess." You toss your condoms towards your pants. Not that you'll need them with Sam. You could just as well leave them here.
"Exactly," Sam says. She sits up on the bed, then moves between you and where Lisa is currently perched on the end of the bed. She holds up the condom she is still holding on to. "I'll even put it on you, since you're all thumbs."
Sam sits in front of you on the bed now, her long legs curled underneath her, and your erect cock on front of her. Grabbing one end of the condom wrapper in her teeth, she tears it open, then pulls it out, then puts the wrapper on Amy's nightstand. She grabs your cock with her free hand then.
"Make sure it's on good, Sam," Amy reminds a little nervously, from behind Sam. Sam's head is in the way of her actually seeing your cock. "I can't get pregnant, especially under the circumstances." She looks up at you, and blushes a little.
Sam feels the texture of the rubber in her hands. "Yeah, we can't have that happening, can we." Then she looks up at you. Suddenly, a naughty look you've never quite seen on her face appears, and you're shocked as she carefully moves the condom to her mouth and bites down firmly on the inner part of the still rolled up prophylactic. You see her canine tear into the material just a little, before she removes it from her mouth.
Her view entirely blocked by Sam's body, Amy is none the wiser. But you obviously saw the entire thing. You have trouble keeping a straight face at what you just saw, and your cock certainly doesn't try to hide it's reaction, as you feel it swelling again.
From her current position, Sam doesn't have to hide her facial expression as she sees your dick respond. She has a mixture of amusement and smug satisfaction on her face as she places the condom over the head of your tool and slowly unrolls it down the entire length. You can't see any sign of damage to the condom, so it's either smaller than it looked, or else Sam had the foresight to make sure it was on the underside of the condom when she put it on.
When Sam finally is completed, and turns away from your cock, Amy finally has a chance to see it. Her eyes widen a little. "That thing keeps getting bigger," she says, a little uneasily. "Much bigger than the other guys I was with."
"Come on, Amy," Sam chides her sister. "You must have vibrators as big as that. I've heard you use them."
Amy turns a little red at that, but keeps looking at your cock. "That's not a dildo though. That's real."
Sam seems to think a moment. "Would you let me use a dildo on you, Amy?"
Amy looks suddenly eager. "Hell, yes!"
"Then let me use Max's cock on you," Sam says encouragingly. When Amy looks confused, she continues. "Lie down on the your back, your legs spread a little." She grabs your cock at the base while Amy slowly complies.
When Amy is sprawled out on the bed before you, Sam starts pulling you towards Amy by your throbbing cock. "Close your eyes Amy. I'm bringing a nice, fat dildo to fuck you with." Looking a little dubious, Amy still closes her eyes. Sam keeps pulling you closer to Amy with her hand, and you're more than eager to let her lead you. Her hand just moves your penis, and you follow.
Sam pulls your cock down to Amy's pussy. You are careful not to actually touch Amy as your position your body over hers, and despite your eagerness you do not move your cock farther than where Sam has guided you.
"I'm going to let it touch you now, Amy," Sam says softly. "It's going to be a all hard and soft at the same time, and rubbery, just like a dildo." She pulls your cock down gently, and you feel her touch the tip of it to Amy's pussy lips.
Amy quivers a little, in mixed anticipation, pleasure, and nervousness. "Just another dildo," you hear her murmur.
"Just another dildo," Sam repeats, starting to run the tip of your cock over Amy's pussy. She's still so we t from your and Sam's saliva, and her own juices, that it soon coats the end of your cock. You'd swear you could even feel a little bit of it get into the condom through the hole Sam made, although maybe that's your imagination.
"I'm going to start putting it in, just a little Amy," Sam warns. "Just putting the dildo in a little bit." She guides your cock back dead center to the opening of Amy's pussy, and slides in the tip just a little bit. It's literally all her at this point. You're letting her do the driving.
Amy moans at the slight penetration. Her body continues to quiver under you. Sam takes her other hand, and puts it on Amy's stomach tracing over it lightly. Then she slides you in a little bit more, causing Amy to moan more. She pulls your cock out a little, then back in. You're barely into Amy by more than an inch or so, but it's between Sam's hand on the base, and Amy's pussy on the tip, it's feeling pretty good.
"It does feel kind of like a dildo," Amy gasps. Sensing that her sister is getting more used to it, Sam slides you in further. You resist the urge to plunge all the way into Amy. That might kill the mood. And there's something incredibly erotic about what is happening right now.
Sam starts pumping more and more of your cock onto Amy now, her grip on your cock getting more tenuous as more of it disappears into Amy's pussy. Amy groans. You suspect that she is imaging that Sam really is just fucking her with a dildo, but as long as you're actually fucking her, you're fine with letting her imagine what she wants.
Finally, Sam lets of your cock with the thumb and forefinger that she had finally had to guide you with once you were mostly sunk into Amy's pussy. Amy doesn't even seem to notice when you take over control of fucking your sister. You keep up the same rhythm Sam had set up when she was guiding you, although you slowly increase the pace. Sam, meanwhile, moves up to start kissing Amy passionately on the lips and fondling her large tits. Amy moans louder and kisses Sam back, her eggs still closed.
"Oh fuck, Sam," Amy moans. "How can I pretend I'm getting fucked with a dildo when it is making my entire body move?"
Sam kisses at Amy's neck. "Maybe it's just me with one of those dildos I can wear. A strap on."
Amy moans louder, apparently at the image it puts in her mind. "But it keeps getting bigger inside of me, and pulsing like that. And... and all warm."
"Come on, Amy," Sam coos in her sister's ear. "Would it really be all that bad to actually enjoy a man's cock... your brother's cock... fucking you? It doesn't mean you aren't a lesbian, or at least don't still like girls."
"But I'm doing this for you," Amy protests, her voice very soft. "I'm letting Max fuck me so I can be with you."
"Don't do it for me, Amy," Sam coaxes. "Fuck Max for you. And Max. Just because you had bad luck with some other guys doesn't mean this can't be good."
"It... is good," Amy moans. The words don't come easily to her.
"Open your eyes, then," Sam commands, but gently.
Amy lets her eyes flutter open, and looks up into your face.
"Umm, Hi Max," She says weakly.
You grin down at her, continuing to fuck her. "Hi yourself."
"I didn't think I'd enjoy fucking Max either," Sam says. "I did it for the wrong reasons, but they turned to the right soon enough. Especially when I tried to make Max enjoy it as much as I was."
"I... I don't know what to do," Amy stammers. "It was enough for me before to just lay there. It didn't last long enough for me to do anything."
"Push back at him," Sam tells her, a little urgently. "Squeeze him. Trust me, your body knows what to do if you let it."
Amy obeys Sam's instructions. Or maybe she just stops keeping her body from doing what it wants to do anyway. You feel muscles in her pussy tightening around you. as she experiments with what her body can do.
She's a smart girl, and picks up fast. Sam laughs as she sees the effect Amy's actions are having on you. "See, Amy? Max is impressed."
Amy giggles, looking up at you. "He always was pretty easily impressed." She looks pleased with herself though. The positive reinforcement makes her work harder. And you work harder too. Amy's action server to further own pleasure as well. You sense her building to a huge orgasm, just as you are yourself.
Her breathing coming very heavily, her body getting closer to the tipping point, Amy still has the presence of mind to turn to Sam. "This doesn't mean your off the hook. I still get special time with you every time I fuck Max."
"I wouldn't dream of altering the deal at this point, Amy," Sam promises.
"And... and I still think I'm primarily a lesbian," Amy says, struggling to get the words out as you pound into her pussy with passion. "Maybe just the teensiest bit bi..."
Sam smirks. "More than just a teensy bit, Amy."
On the verge of orgasm, Amy makes one last stand to preserve her hold on full lesbianism. "Even now, I can't get the taste of your juices out my mouth, Sam. That tells me I'm a lesbian."
Sam's smile deepens. She leans down to Amy's ear, and whispers, barely loud enough for you to hear.
"Amy, that was mostly Max's cum. I made sure I was filled up with it before we got started. It's his taste as much as mine that you love."
Amy's eyes widen. "You bitch," she says, although with only mild venom. Then her eyes open even wider, and she wraps her legs around you, pulling you deep into her as she cums, more violently than you've seen her cum before. You grunt as you feel a torrent of cum rising up through your balls, then accelerating through your cock as if through a cannon. You're wondering if the weakened condom even stands a chance against such as onslaught as you feel your seed spill out. You know at least some of it must be making it's way out through the hole, although you don't know how much. While more cum might be better for knocking up Amy, a visible ruined condom, or cum leaking out of her pussy might be bad for your future with Amy. At least until you, and apparently Sam now, too, can sell her on the idea of wanting to actively have your baby.
Amy cums again, even going as far as to call out "Max!" as she cums. You feel obliged to keep thrusting into her, helping her to maintain the moment even as you feel more jism erupt out of your cock. You hear her moan something else then. "Maybe more than a teensy bit..."
At long last, Amy's body relaxes under you. Her breathing is ragged at first, but she gradually composes herself. Sam puts her hand under Amy's head, then uses her other hand to gently grab you head, moving you and Amy together in a passionate kiss as the last bit of orgasm leaves your bodies.
What next?
