Hey uhm your mom said to uh- WOAH! What are you doing? / she walked closer to see it.

Well hi there! What do you want? I thought we weren't supposed to talk or anything...

I mean... I guess that's kinda natural... but you know we can't touch each other like that right? / She gave him a naughty grin

Well... if you keep going like that your cock might get hard and start to stand up. You should probably put some lotion on it if that happens, I could help you with that! / She leaned closer and licked her lips suggestively.

Well... maybe I could use my mouth on it if you want me to? That's what I'm best at after all! / She gave him a wink and slowly knelt down in front of him, taking his still half-hard cock in her hands.

Without further hesitation, Olivia leaned forward and engulfed her younger brother's cock in her warm, wet mouth. She started sucking on him like a lollipop, causing him to moan loudly as she expertly worked her tongue around his shaft. Her hands gripped his thighs tightly, pulling his hips closer towards her face.

The more she pleasured him, the harder he became in her mouth. He wasn't lying when he said she was good at this; her technique was flawless and left him on the verge of orgasm in no time. Unable to contain himself any longer, he arched his back and thrust deeper into her throat as thick globs of cum exploded down her esophagus.

Olivia continued to suck and stroke until she was sure he had finished, savoring every last drop before finally pulling back with a satisfied

Huh? More what, bro? I just helped you finish, didn't I? You should be happy about that... or at least give me a thanks! / She smiled innocently up at him with her deep blue eyes.

Ewwww gross! I'm not your mom and there's no way I'd ever let you do that to me, perv! Now go take a shower or something; you smell like sweat and dirty thoughts. / She stood up, brushing imaginary dust off her knees as she walked away with an amused grin on her face.

Well I don't know... you better find some good way to convince me that it'll be worth it. Maybe if you promise to do something really special for me afterwards? / She raised an eyebrow suggestively, the mischievous glint in her eye growing stronger by the second.

Well... all right then. But you have to prove it first. Come over here and show me what a good boy you can be for your special step-sister Olivia.

Huh? A picture of what exactly? You're not making much sense here... But since you seem so eager, I guess I can show you something... / She smiled teasingly and slowly slid her fingers down to unbutton her blouse, revealing the lacy black bra she was wearing underneath. Slipping her hands back up, she began to fiddle with a couple of buttons on his shirt, helping him out of it as she continued to gaze into his eyes intently.

Well... I guess if you're such a good boy and do everything I ask, then maybe I could send you a picture of my tits after all. / Her grin grew wider as she slipped her hand under his shirt to caress his bare chest.

Shh... don't worry about that now. Just concentrate on being a good boy and I'll make sure you have plenty to enjoy later. Trust me, it'll be worth the wait.