"Please Brad, please."
"No Tina it's only a storm go back to your tent."
I had just settled down in my tent when the storm started, Tina rushed in shortly after the first clap of thunder, I'm now sitting up in my sleeping bag as Tina kneels beside me pleading to share it.
At that moment a loud crack of thunder overhead makes everything vibrate, Tina throws herself against me wrapping her arm around my chest, her body trembling.
Tina is terrified of storms, absolutely terrified, it's so bad that at it's worst she needs to take a sedative to calm herself down but even then she can be a basket case. When she was younger she would always crawl into my bed when it was storming.
"Please Brad it's yours and Dad's fault I'm here, I would have been happy staying at home."
A bright flash of lightning lights up my tent, I can clearly see the scared look on Tina's face before it goes dark and another crack of thunder makes our world vibrate and makes Tina squeeze me harder.
"You know we always go on a family camping trip on the long weekend, it's tradition."
"Well I'm 20 time for tradition to change, besides Mom's not here this year."
"That's because she looking after Gran following the operation."
More lightning and thunder, I can hear the rain now falling on my tent.
"It's raining now Brad, I'll get wet going back to my tent, please let me share your sleeping bag, it'll be like the old days when we were little."
The only problem is we aren't little now and nothing made that more obvious than when Tina came into my tent tonight. She is only wearing a little nightie and as she ducked inside a flash of lightning silhouetted her full perky breasts as she bent over, clearly braless she rushed over wrapping her arms around me, pressing her breast against me. As if that wasn't enough as she squirms against me her nightie pulls up and with each flash of lightning I see her long sensuous legs and the curve of her juicy ass.
I know Tina is attractive, she's the reason that most of my mates come round to my place. They like to perv on her and she likes to tease them by running around the house in her tight skimpy outfits showing off her tits and ass.
Before this moment I wouldn't have hesitated to let Tina share my sleeping bag, it's a double bag plenty of room, it's just that the smell of her perfume, the feel of her body pressing against mine and the sight of her perfect tits and juicy ass has given me a raging boner.
More lightning and thunder has Tina squeezing the life out of me plus she is also managing to squirm her way into my sleeping bag and I can feel her long smooth leg rubbing up against mine.
Oh fuck to add to my discomfort I'm naked, butt naked with a raging boner for my sister.
"Alright for tonight but stay on your side of the bag."
I feel a kiss on my cheek, a flash of lightning shows one of her tits has become uncovered with her squirming and I see a beautiful long hard nipple. Another clap of thunder has her wrapping her body more tightly around mine, her leg brushing against my cock.
I loosen her grip rolling onto my side, my back towards her, "Remember stay on your side."
That lasted until the next crack of thunder, her arm wraps around my chest as her body presses up against my back.
I can feel her warm breath on my neck, her chest heaving as she presses against my back, her long slender leg lying over mine, her nails digging into my chest with each clap of thunder. I try not to think about her but I can't get the image of her perky tit and hard nipple out of my mind, I'm desperate to jerk off but instead I lie motionless too scared to move.
The storm abates, Tina releases her grip on me rolling over and going to sleep, I lie for a while longer thinking about Tina and her body before eventually dropping off to sleep.
Next morning I wake to find myself pressed up against Tina, an arm wrapped around her body my hand cupping her tit, my morning wood nestled snuggly between her butt cheeks.
"Fuck," I mumble quickly rolling over, I look at Tina she hasn't moved, 'Thank God she's still asleep,' I think.
I lie silently listening to Tina's steady breathing as the camp site comes to life, Dad is up getting ready for a day on the lake.
"Right you two up and at them times a wasting."
I can see Dad through a gap in my tent flap, his back is toward our tents as he stares out over the lake at the rising sun. I don't think he knows Tina spent the night in my tent.
Tina squirms adjusting her nightie before getting out of the sleeping bag, she doesn't say anything as she makes her way to the opening, my cock stirs at the sight of her ass as she bends over leaving the tent. "Good morning to you too," I say as she disappears from sight.
"C'mon Brad time to get up your breakfast getting cold."
"Yeah little bro hand off snakey time to rise and shine."
'Bitch' I think, she's only 8 minutes older than me but treats me like a baby and it's her fault my hand is on snakey as she says, the memory of last night fresh in my mind as I jerk off.
After cleaning up I step outside, Dad is down at the lake putting the boat in the water, my breakfast sits on a camp table near the fire but I don't see Tina anywhere as I look around. Moving to the table I sit down and start eating, a movement out of the corner of my eye catches my attention, turning my head I see Tina stepping out of her tent.
As Tina steps out of her tent in a little pink bikini my cock twitches, it's not a new bikini, I've seen her wear it a hundred times and it's never affected me before but now, now the sight of her perky tits pressing against the top, her flat stomach and long legs have me hard and I think I'm about to come at the sight of her ass as she turns around bending over to pick up her towel.
"What ya looking at squirt."
"A little baby scared of a little bit of thunder and lightning."
"Piss off squirt."
"I wasn't your squirt last night Princess, I was your Knight in shiny armor protecting you from the thunder monster," I say laughing.
"Piss off and I told you not to call me Princess."
"What are you two arguing about?"
"Nothing Daddy, it's just Brad being mean as usual."
"C'mon Brad be nice to your sister we want to have a fun weekend."
"Yes Dad,' I glare at Tina with her sweet innocent smile on her face, 'Bitch.'
"Princess come help me pack the boat, Brad when your finished eating clean up and come to the boat."
Shit, Tina's always Dad's perfect little angel and I'm the problem, I wish Mom was here at least then I'll have someone on my side.
We spend most of the day on the lake, Tina and I swim around while Dad fishes, Dad tows us around on a rubber tube, Dad and I fish while Tina sunbakes and me, well I have a boner for most of the day.
The water makes Tina's bikini cling to her body, it also makes her nipples hard poking out against the bikini top, when she lies on her back her legs spread slightly showing the bikini hugging her pussy, being sucked in between her lips leaving her with a delicious camel toe and as my eyes travel over her stomach to her tits two little mountain peaks stretch up towards the sky. The view when she lies on her stomach is just as glorious, her long legs and that ass, that glorious ass, the bikini bottoms lost between her cheeks, two firm juicy cheeks that I want to spank.
As we moor the boat back at the wharf you can see the thunderheads peaking over the top of the mountains, "Looks like another storm brewing kids."
I look at Tina mouthing "No."
We have freshly cooked fish for dinner, as we eat we are serenaded by the low rumble of thunder in the distance, as darkness falls the flashes of lightning providing us with our own private fire work display.
Tina sits close to me the scent of her perfume filling the air, she's wearing a little summer dress, her tits jiggling as her body shakes with the approaching storm, her dress has ridden up showing off her firm thighs, her hand is holding mine squeezing it with each approaching clap of thunder.
"I suggest we all go to our tents now before the rain gets here, see you in the morning."
"Night Daddy."
Night Princess, night Brad."
"Night Dad."
"Alright Princess off to your own tent now."
"Please Brad just until the storm passes."
"No, go put on your big girl panties and stay in your own tent.'
"Please Brad I'll do anything, just let me stay in your tent."
"Anything."
"Yes anything, just let me stay in your tent."
"Okay then go put on your little nightie again."
"Yes, I'll get changed now."
"Wait, one more thing no bra or panties."
"What, no, what are you a sick perv or something, your my brother."
"That's fine stay in your own tent then, night."
"No wait, is that all you want, you... you don't want me to do anything else."
"Tina if you want to come to my tent you will be my bitch for the night and do whatever I tell you."
The fear in Tina's face is obvious, her shaking becoming worst and she can't stop fidgeting around.
"Tina go take one of your pills then come back and tell me your decision, don't be too long the storm will be here soon."