You don't mind at all
From Torg Adventure
Mind? This is what you've been wanting for years, at least since Lisa started developing tits sometime in grade school, even before her older sister Sam. You're pretty sure your first boner came from her wearing a sweater. Although even then, she was kind of a bitch and a tease. Developing at an early age apparently was part of what made her what she was today.
Lisa has more than enough experience with men to know your answer, apparently. She gives the head of your cock one more kiss, before telling you to move down between her legs. As you do so, she turns on her side and puts one leg up on your shoulder, opening her pussy wide open to your fascinated stare. Leaning on one arm, she raises the lower part of her body up, placing her pussy roughly on level with your groin.
"Come on Max," she purrs encouragingly. "Put it in me. I want you so bad right now. And I'm on the pill, so you can cum inside me if you want."
You were hoping that she wasn't on any protection at all. Still, the pill isn't 100% effective, is it? It's not like you're going to turn down the opportunity, just because she's on birth control So you move forward, letting her leg move further over your shoulder. Lisa's hand meets your cock as you get it into position, and she holds it steady as you slowly push into her.
You can feel her walls squeezing you as you go in, enough to offer erotic resistance without making it difficult. Snide comments that you've overheard from Sam aside, it is most definitely not like throwing a hotdog down a hallway. It's like heaven.
Lisa moves her hand from your cock as it disappears inside of her, and cups your balls gently. "You've got a nice cock, Max," she smiles. "My pussy likes it, at least. You shouldn't have kept this thing a secret."
You smirk. "You just had to ask."
Lisa smiles back seductively. "I'm asking now, Max. Fuck me good with that cock of yours."
Grabbing the leg she has up over your shoulder with one hand for leverage, you start fucking her. She meets every thrust with a motion of her own, doubling your pleasure, and her hand keeps caressing your balls.
"Do you like my pussy as much as I like your cock?" Lisa asks, her huge tits shaking as you keep pounding into her. "Is it one of the best pussies you've ever had?"
"Definitely."
Lisa looks satisfied, and only partially in a sexual way. "Good," she answers, a little smugly. She starts moving back at you harder. "You won't need to get your kicks from anyone else after this, Max. I'll give your cock a new home for as long as you want." She pauses, thinking. "Well, at least as my schedule permits. I've got an active social life." She lets go of your balls then and puts her hand over the hand you are gripping her leg with. "I'll bet there are a lot of things she never let you do. But I have no limits. I'm very... accommodating." She smiles wickedly. "I also have girl friends who are just as adventurous."
Is Lisa suggesting bringing some of her friends over? You've seen her friends. You've jerked off to her friends. Frequently. The only thing that could make them more attractive to you is if they were related to you.
Lisa laughs. "You like that, don't you?" She adjusts herself on the bed, to get better leverage against your thrusts. "Your name has come up when we talk, several times. Let's just say that you'll be an easy sell to them."
Lisa closes her eyes for a moment and lets out a satisfied moan, before opening them to look at you again. "They even asked me if I ever let you fuck me. I'm not the first one of my friends to have done something like this, Max. We're kind of a wild bunch."
Her body is glowing with perspiration as, while you're just plain sweating. Lisa is making sure you are having a good time, and she's either having a really good time herself, or putting on a hell of an act.
"I even watched one of my friends get fucked by her dad," Lisa continues, closing her eyes and smiling at the memory. "He didn't know I was watching, of course. Until I joined them. I still let him buy me dinner and then fuck him in a hotel afterwards, every once in a while. Or after he buys me something."
You pound into her harder, causing her to fight to keep from being forced further up the bed. "So do I need to buy you dinner, or gifts?"
Lisa laughs, then goes back to panting. "If we're talking gifts for sex, then I still owe you for two decades of birthday and holiday gifts. And you owe me the same. So we're good for a long time, Max." She moans. "Although if you can keep fucking like that, I'll be more than happy to let you do this on credit."
Then, almost casually, or at least as casually as she can while at that level of excitement, and while getting fucked that hard: "Of course, that's assuming that I have an exclusive... inter-family relationship with you. You can fuck whoever you want outside the family, and I'll even help you with that if you want, but I don't want to have to compete with anyone else in this house."
You start to open your mouth, even though you aren't sure how to answer. "Oh, you don't have to commit right away, little brother," she interrupts. "I haven't shown you all I have to offer, yet. You can't make an informed decision until you put me through my paces."
Damn. It's almost too easy with Lisa. Although easy has been used often to describe your sister, despite it being so hard for you to get anywhere with her previously. Now it was almost as if she was throwing herself at you, even if you weren't entirely sure why. Except that it seemed to somehow have something to do with Sam.
Lisa reaches down between your legs again, struggling to hold onto your balls as you furiously fuck her. "I'll bet these guys are just waiting to fill me up with cum, Max. I've had cum literally on every square inch of my body, but for this time, I definitely want it inside of me. I just love to start my day off with my cunt full of cum, letting it warm me up for the rest of the day. And I can tell that you've got some really hot cum in those balls of yours."
She squeezes your balls again, a little harder. "But it doesn't do me any good if it's all in there, Max. I need it inside of me. I need my brother's cum inside of me. I've got it in my belly already, and now I need it in my snatch. So don't be so damn selfish and share that stuff with me again."
You fuck her even harder then, eager to fulfill her request. Thanks to where her hand is located, Lisa knows when you cum at the same time you do, and a split second before you actually erupt inside of her, giving her time to grind herself down onto your cock hard.
"That's it, Max!" Lisa caresses your balls as you both orgasm, coaxing them to spill more and more of their load. "Give me all you got, lover... don't hold any back."
Despite your other orgasms today, you produce a more than modest amount this time, due perhaps in no small part to Lisa's talents. And the sounds she makes when she's climaxing... the little gasps, and cries of pleasure... they do almost as much as her hand.
When the happy sounds and motions are over, Lisa lets her leg slide from your shoulder, and sinks back onto the bed, letting your cock slide out of her, leaving a sticky trail of cum from your rod to her pussy before it falls down onto her mound. Then she laughs a little. "Jesus, Max. That's enough to last me through the week. Someone in this house obviously hasn't been doing enough to keep that thing drained. But I can take care of that." She smiles contentedly up at you. "I can take care of all of your needs."
She glances at the clock then. "Shit. But not right now. I didn't expect you to have that much stamina, stud. It's later than I thought, and we've both got stuff to do today." She sits up then, and reaches for her robe. "But tonight, if you want, we can do each other, and I can show you again why you don't need that other person."
Lisa kisses you on the cheek, then hurries to the door. Without even checking to see if the coast was clear, she opens the door and steps out, the robe only partially on. It's as if she doesn't care if she gets caught. Or maybe even wants to be. She does at least close the door behind her.
Exhausted, you fall face forward onto the bed, turning as you fall so that you can on your back. You can feel various bodily fluids from the bed on your back now, in various states of cooling and stickiness, but all things considered, you don't really care. And despite Lisa's words, you certainly don't have anything to do for the next couple of hours at least. Other than to get some what you consider to be well-deserved rest. You quickly fall asleep.
What does the rest of the day hold for you? Or even just the rest of the morning?