Go for the guaranteed blowjob
From Torg Adventure
With Lisa's mouth right there, and the tantalizing glimpses of what she could do it still fresh in your mind, you decide to go with the sure thing. At least, if she's not teasing on that, as well. You need to get off somehow because of all this, and what you'd least like to do is go back to your room and have to jerk off. You don't trust Lisa enough to actually give you an actual chance to fuck her, as much as you'd like to do that.
"I'll take the blow job, then," you tell her.
"Not a bad choice, little brother," Lisa smiles, her hand stroking your cock. "Although I was totally going to let you fuck me if you'd taken a chance." You don't completely believe her on that regard, although you're wondering if maybe you should have taken the risk anyway. On the other hand, Lisa didn't seem likely to let the ending tease with this. You still might get your chance at screwing her in the future.
"This will make a pretty good consolation prize for you, Max, so don't feel too bad though." Lisa leans forward and takes you into her mouth again, but this time even deeper, and with more enthusiasm, showing that she had only been using a little bit of her skill earlier. She pulls back after a second. "In fact, I'll bet I can give your more pleasure with my mouth than our sisters can with their entire bodies combined."
"I'd like to see you try," you tell her.
Lisa chuckles. "Oh, you definitely will, Max." She slides her mouth over you again, her tongue gliding on the bottom of your stiff rod, and her lips squeezing around your cock. She begins moving her head back and forth, taking in as much of your cock as she can each time. One hand holds onto your leg, while the other one caresses your balls gently, her fingernails occasionally just lightly scratching your skin. It's the most expert blowjob you've ever gotten, although it wasn't as eager as what you had gotten from Sam. And as good as it felt, you still preferred the feeling of a pussy to a mouth. And you couldn't get Lisa pregnant by fucking her face.
Lisa gets go of your leg, and starts squeezing her breast with it as she continues pleasuring you with her mouth. You can see her big nipples are swollen and hard, and get even more so as she pinches and rolls it between her fingers. Lisa's seems to enjoy giving blowjobs almost as much as you are receiving them, and as you watch, she slides her hand down from her breast to between her legs, and starts frigging herself. She spreads her legs apart further. Even though your view is somewhat blocked, you think she just started fingering herself, as a moan escapes her mouth around your cock.
She moves her head back, and you slide out of her mouth again as she pants heavily, catching her breath. She leans back a little more, letting you see that she's got her index and middle fingers stuffed completely into her snatch.
"This has got me so hot right now, Max," she purrs sexily. "I keep trying to fill myself with my fingers, but what I really need is a fat cock like yours in there. You really should have taken a chance on fucking me, because that would feel so incredible right now." She moans again, and pulls her fingers out completely, showing that they are all sticky with her juices. She takes her fingers and rubs them on the head of your cock. "There Max. Just a taste for your cock, to show it what it could have gotten. And speaking of taste..." She gives your cock a little squeeze, causing some precum to ooze out, and mingle with her own pussy juices that she had deposited there. She leans over and sucks both off the end of your tool, making you moan for multiple reasons.
She leans back again, showing that she's fingering herself again. Her hand pumps your cock as she continues talking in a breathy voice. "I'm tempted to say 'fuck it', and just let you fuck me anyway, Max. You'd like that, wouldn't you? Fucking your sister's pussy? It's even better than my mouth, and so hot and dripping wet right now. And it needs a big, thick cock in it so bad right now. I'd like to just stand right up, turn around like I did before, but this time I wouldn't move away when you tried to stick that dick in me. We could have crazy, incestual shower sex until we both have mind-blowing orgasms."
She sighs then, still pumping your cock with one hand while slipping two fingers in and out of her pussy with the other. "Well, we could, except you picked the blow-job, instead of trusting me to let you fuck me, and I can't change that now, can I, Max? But don't worry, because you're still going to get off from this blowjob, and I can swallow it for you, or let you blast it onto my face or tits. You can even cum on the outside of my pussy if you want, but you aren't getting into it." She moves her mouth closer to your cock. "And don't worry about me. I'm going to go out after this and get fucked so hard I won't be able to walk. Maybe I'll even think about you while I'm getting my pussy pounded, Max. I might even pretend at some point that the lucky guy fucking me is you, because I think that would make it even hotter."
You know that Lisa is saying this all just to get you even more worked up, and frustrated, even if she is going to keep giving you a hummer. It seems that she just plans on letting the sexual tension keep building between you, even with the intimate contact you are experiencing now. She knows that you won't ever be fully satisfied until you are able to fuck her.
She brings her head closer again, guiding your shaft into her waiting mouth as she starts sucking your cock again hungrily. She's actually taking the head of your cock into her throat a little with each bob of her head. That Lisa has no gag reflex comes as absolutely no surprise to you, and she seems eager to show off that ability as she lets more and more of your cock penetrate her throat with each motion, until finally you're in her mouth to the hilt, and partway down her throat.
You aren't going to last much longer against your sister's considerable cock-sucking skill, although it seems that she's close to fingering herself to an orgasm. She see her look up at you suddenly, her vast experience with men apparently telling her that you are going to cum soon. The obvious question her eyes are asking you is where you want to cum. The choices she gave you were her mouth, her face, or her tits. She even said you can ejaculate over her pussy, if you wanted. Hell, if you aimed right, and got lucky, maybe one of your swimmers would find it's way inside of her. Although the other options were attractive as well.
Where do you cum, or what happens next?
