Skip starts out strong

"I'll show you whose got balls!" Skip said, quicky reaching out and slapping her pussy. The suprise and strength of it caused her knees to buckle together and hold his hand there. He could feel his middle finger along the slit, and could feel the individual lips.

"Ow, Okay you grew some little balls!" She mocked him, she would spank herself a little softer than that when she masturbated. Tara started to laugh, but then a tug that made her eyes go wide.

Skip had grabbed her inner labia through her panties, and he was pulling down! "Ooowe you win no fair!

But skip wasn't done yet. "I'm not stopping til you take back what you said." And he kept pulling at the inner lips, he had her pussy in his control.

"Okay.. you're not a sissy you got medium balls! Ow ow ow! How did you even grab that! Aaaaa okay! you got big nuts, okay. My brother has huge balls!" She shouted. He let go, she started rubbing herself with a free hand. Although he did shock her, he was also gentle, she wasn't hurting and arousal had replaced the discomfort.

They both laughed at the situation, "Is that what it takes to get a compliment? I 'll have to remember that next time i need me a pick me up. Did I go too hard on it? skip said pointing between her legs.

Tara realized she was rubbing herself still, so to act strong she gave her mound a few pats "Nah, these girl parts are strong. And if any one should be asking about "hard on" it's me," she said, pointing at skips erect penis which had gone from half to full chub her finger just a inch away. "Did grabbing my pussy make you hard?" Hoping that the awkwardness would cause him to call it off with just that one grab. Like many times in the past when she would say, boner check! and embarrass him in front of her friends.

"You tell me" Skip said placing her hand on his cock, "Perhaps now is a good time for a boner check? Grip it firm, but you cant squeeze, see if you can feel anything while I try this. But if you let go of my dick I'm start over again" he said, "And no rubbing it better til i say."

"Try whaaaaaoooch" she moaned out. He kneed her pussy, but it ended up being mostly his lower thigh. As her lady bits compressed against her pelvis, she let go of his dick in shock. But she wasn't to be out done. She grabbed him again, this time nearer the root of the cock, leaving the head and some of it pointing out past her hand. " I can do this!"

The next kick was all knee, the worst kind of hit, mashing her clit into her pelvis, causing he to let go of her brothers wang again. "okay, luck hit. That one got my clit. I can feel that you are rock hard though, i can feel your heart beating through it. You love punishing your bratty sister's pussy!" she said, taking his cock in her hand again. "It's even harder than before!

"Here, I'll build up to it, maybe that will help you, one soft knee, one medium and one hard." and before Tara could say anything, the soft hit. It felt nice more than anything, but her heart was racing, and so was his. She could feel it in his dick, it was erect, hard, sticking out proud. She slid her hand up the dick a little, hoping to maybe feel his balls while she was there, but could only feel where she though the scrotum might be, but with pants it would be hard to tell.

WACK! the medium hit. A electric shock went up from her center outward. A bit off center, but a good hit, and he got the clit for a 3rd time in a row. But, her hand remained firmly on his shaft. "Wow, my brother the cuntbuster! Where did you learn that? They say most men can't find the clit, but you have got me good."She wanted to take a brief pause without looking like she backed down, but she was curious. She also slid her hand as far back on his dick as it would go, and moved her index finger which was on the back base of his dick, up and down managing to get a quick sense of his balls. they felt nicely sized, and she wished she could explore them better.

"I had a old GF that loved her clit being sucked on, or even just rubbed over the pants. She was always placing my fingers there, even out in public. But it was more a pleasure thing, although i did once bump her into a desk corner on accident. Those desks are kinda at the worst height for short girls. I must have had to massage her cunt for an hour. Before her, I had no clue how far down it all was. Thought the whole thing would be more front and center." To illustrate his point, he reached out and with perfect aim poked her clit, gently for illustration, then traced his finger up above the slit, to where he used to think it was."

"placed like this?" she said giving a wiggling his erect dick a little, "I used to think they pointed straight down when flaccid, right in between the legs. So we had the same mistake." she paused, decided to change grip on her brothers dick. Sliding away this time just letting the very tip poke out between her thumb and pinky. She enjoyed softly squeezing the head and filling the blood flow out and in. "okay... go for it."

The hit connected swift and accurate, the hardest on of the night. "ow my fucking pussy" she said. This was the hardest of the night, while not enough to harm her, it was right on the edge. As all of her bodily attention went to her crotch, she felt on fire, open and wet. She for a moment had all her attention on her cunt. Worried it would be a repeat she closed her hand... and felt the spongey but hard head of her brothers dick.

"okay, I think that will do for now. " skip said, "ok, You can rub yourself now, you are wet." He said, giving a gentle tap to the wet spot on her panties. He loved the physicality of this, as he had been caught by her with a boner various times, so it was exciting to see her undeniably around.

She began rubbing her clit in circles, not as much soothing herself as pleasuring herself, but she didn't let go of her brother for a second. As the pain subsided, her clit stayed swollen. She was a avid masturbator, but this felt better. Holding onto her brothers dick was like holding onto a magic wand, it made her feel powerful just to hold it. She was staring to rub harder as well as starting to very slowly move her hands back and forth on his penis. Not only was she beginning to rub one out in front of him, she was starting to jerk him off as well. She started making little moans, then accidentally said "I felt all those times I saw your morning wood or watched you get bigger when you fell asleep that I should grab it. I... oops"

"You what?" Skip was unaware but not surprised. After all, this was her idea, and she still held his dick while dreamily rubbing herself. But, he didn't want to miss his chance for the other part of the bargain."