Happy Birthday

A few weeks ago, my sister had to run a race. She was still 17 then and her birthday was a few weeks later, like today. I am 4 years older than my sister and I didn't like her. Not that she was bad or so, but she always had been a pain in the ... . When my friends came for some fun, she always had to meddle. When there was a party, I always had to babysit her and so on... I know she couldn't help it, but still...
And now she had to run this race. I was teasing her weeks before. She was going to loose this run, she wouldn't even end up in the first five, etc. But she took it seriously and she answered me she had a good chance of winning. Her times had been very good and steady the last two months and she was optimistic. But I kept on nagging her. So we made a bet: if she won, I would do everything she wanted on her 18th birthday. If she lost, she would have to do everything I wanted on her 18th birthday. Her 18th birthday is today.
The run started and she had a bad start. You can imagine I was delighted. But slowly and steadily she passed several competitors, until in the last round she had only two runners in front. And then she started to sprint. I never had seen something like it. She passed them all and reached the finish five or six yards ahead of the second. I must have turned pale, because when she looked at me, she smiled and put three fingers in the air. The three weeks to her birthday.
Today is her birthday. My parents have gone for a weekend at the coast and we both stayed behind. To celebrate Jillian's birthday, as my father and mother said. My sis told me she would give her orders by little notes.
Now I'm waiting for her notes. In the meantime her friends have arrived. They always kiss and touch each other in places I wouldn't call decent. I think they're all lesbians. But Sis doesn't mind, as long as they are friendly. Her friends have already given her the presents, when the first note arrives.
"Read this in your room" it says at the outside. So I'm off to my room, happy to be alone a bit. Once in my room I sit on my bed and I open the note. I can't believe my eyes.
"What?! She can't mean this!" I shout.
But there it is undeniable: "Take off your clothes. Just keep a shirt and stockings. Come downstairs and say the following: ... "
Sighing, I start stripping of my clothes: pants, socks, shoes, T-shirt, bra, undies. And then I put on thigh high stockings and a shirt, open. I hesitate before I'm descending the stairs. My god, what have I gotten myself into. I take the doorknob in my hand and reluctantly I open the door. The five of them are waiting for me sitting on the couch, sniggering and leering. One of them is Jamie. She has a crush on me and she can't get enough of the half naked sight of her beloved. OMG!
I step through the door and I want to stop, but my sister calls me in until I'm only a few feet away from them. I keep my arms crossed and my knees a bit together in a futile attempt to cover my privates a bit.
"Well, big sister ,is there something you want to say to me?" she smirks.
" My sweet l... lit...tle s..s..sister," , shame and embarrassment make me stutter, "Ha...Happy b..b..birthday! He..here is yo..your.. pre...pre...sent! I a..a...a..lready open..ed it u..u..up a lit..lit...little for you!"
"Do you want me to pack it out completely?" she smirks. They all start to laugh, except Jamie, who is eager to have me "unpacked". I nod, because I can't say the word.
"What's that you say? I can't understand you!" she pesters.
"Yes!" I hiss.
"Well I'm a bit lazy, but I think Jamie will be honoured to do the honours of unpacking my present and present it to me!"
All of them start roaring, except Jamie, who almost tumbles to get me completely naked. She clumsily takes my shirt and with trembling hands slides it down my arms. Then she kneels before me and rolls down the stockings. I can feel her warm breathe on my privates and it feels really nice. She takes my stockings completely off and then I am stark naked.
"I love a birthday suit on my birthday as long as it's not mine! Jamie, give my sis the next note, please!" Jillian orders.
Jamie walks to the cupboard and takes out an envelope. She walks back to me, while she keeps on staring at my body. She must really long for it. It makes me tingle all over. Looking closer I think she is really cute. It doesn't keep me from covering my private parts. She hands over the envelope and I open it. Inside there's a note.
"Put on the apron and start serving the drinks," it says.
"The apron is on the kitchen table and the drinks are in the refrigerator," my sister tells me before I can ask. I head off to the kitchen, feeling five pair of eyes glued to my back and more probably to my bottom. I can hear them sniggering and I try to cover my butt with my both hands, palms of my hands on my cheeks. On the kitchen table I find an apron; it's hardly big enough to cover my crotch. I put it on and fasten it with a loop on my back. I take the bottles with drinks out of the refrigerator and bring them to my sister and her friends.
They have left the living room and are all seated around the swimming pool. I know it's hot, but I'm not going outside, semi-nude as I am now. And then my little sis calls me.
"Come on, bring the drinks out here, it's too hot to stay inside!"
I sigh and step through the open window. Before I venture in the open, I look to the left and the right to see if the neighbours aren't watching. I know they can't see us because of the fence around the garden, but still I feel uncomfortable. When I have put down the tray and served the drinks, they start slapping on my bum. They laugh, while I squeal, which makes them laugh even more. Well I don't think it's funny.
My sister and her friends are in their bikinis and it makes me feel even more nude. My sister orders me to stand under the arbour with the tray in my hands. And then they start the game: they drop things and I have to pick them up. Bending down so that they get a good look at my rump and my vagina, I imagine. Every time I get back to the arbour, they call me over; get some snacks, get some drinks, pick something up... And I have to do it; by now they have taken dozen of pictures of me naked, bending, serving naked, etc... I can't take the risk of being exposed to the whole town. Next year I'll be looking for a job and I don't think they need a nudist to do the sort of work I want to do. So I obey at each and every wish or command.
Suddenly my sister walks inside and when she comes back she has a bag hanging from her shoulder. She puts it down and beckons me with her finger.
"I know you're going to like this: I found it in your room!" She smiles deviously and brings out ....
"OOOOHHHH!" It's the only sounds I can utter. She has found my vibrator! OMG!!
She leaves her garden chair and pushes me into it. Then she lifts up the apron and spreads my legs. In the meantime one of her friends has found an extension cable and suddenly I hear a familiar sound; the buzzing of my vibe. Normally I love the sound, but now I get horrified by it. They wouldn't do it here, in the open! And then I'm even more horrified: Jamie is watching the whole thing and she's almost drooling at the sight of my pussy. I try to stop them, but one of them takes my arms and pulls them above my head. It's hopeless, so I gnash and I close my eyes. This way I can't see that my sister invites Jamie to participate. When all of a sudden I feel someone kneading my tits, I open my eyes and I look straight in the eager eyes of Jamie. At the same time, I feel the vibe quaver against my clitoris. And I'm off on a roller coast as always when I'm on my own. Only, this time it's different: it's stronger, more intense. From the beginning I can feel the throbbing in my abdomen and it spreads all around my body in a wink. They all have to hold me, it takes only a moment and I start arching and twitching. My southern regions are under monsoon rains. I feel them passing my thighs. Moaning and groaning I try to break free, but my sister's friends hang on. With a last arching of my body I cum: a fountain of heat moisture submerges them.
When I look up I see my sister and two of her friends wiping the juices off their faces with their hands. They look disgusted and I can't help it; I start laughing when I see their faces. My sister smiles wickedly.
"So you think this is funny? I know something else to make you laugh!"
In an instant, they're all on me and holding me to the chair, except for my crush of course. Then I feel my sister's nails on my foot soles and my eyes turn big.
"NO! NO! NO TICKLING!" I scream. But in answer, I see my sister standing up and taking her bikini pants down.
"This should keep you quiet!" she says while she is forcing her panties in my mouth. Ooooh! For a moment I'm silenced: I never thought she tasted this .... refined. But then they start tickling me again. They attack my sides, my thighs, my armpits,.... My sister is exploring my soles with her fingernails. Even Jamie is scouting the base of my breasts with her nails.
"MmmmMM... ET ... IIIEEE .... OOO!!!! IEZZZE .... EEE ... AAAAOOOONNNNEEEE!!!! OOOO YYYY ...... EEEEETTTTTT! IIIII ..... AAAAAVVVVVEEE ...... OOOOO...... EEEEEEE...."
But it's too late: for the second time I release a fountain in my sister's face. My sisters looks like she has eaten a complete lemon. She sits on her knees bottomless, while everybody's looking shocked. Then somebody starts to laugh and soon we are all laughing. She stands up and walks to the shower to wash herself.
When she returns, she looks very annoyed and angry. She walks straight up to me.
"Take my bikini pants out of your mouth and give them to me!" she shouts.
But I grab my chance; I take them out of my mouth and put them on myself.
"Lets have your bikini top! Come on, girls, lets get the birthday girl in her birthday suit!" and in a wink all four are around her tugging at her top. She tries to save her breasts from being exposed, but in vain. When her friends have pulled of her bra, they lift up her arms to expose them more. She squeezes her legs together and pulls her right leg up to cover her pussy, but we all can see it's completely bald.
Now she is really mad and when we release her she runs into the house. All five we have become silent. We realise we have ruined her birthday.
"We shouldn't have done this."
That's Nicky, her dearest friend.
"It's all my fault," I say, "I had lost a bet and I should have kept my end of the bargain. I had to do whatever she asked of me!"
"Yeah, we know, but she was really tough on you!" Jamie, my crush, is defending me.
"Mmm... But you know I really liked it!" I answer. And then I add, whispering in her ear: "Especially when you joined in!" Her eyes grow big and she's completely surprised when I give her a little kiss on her nose. The others smile.
"But what are we going to do with Jillian?"
Nicky looks at us.
"I've got an idea; come closer!
She starts talking and we can't restrain our excitement and pleasure.
"Great idea! Fun! Fun! Lets do it!..."
About 10 minutes later Nicky carefully enters the house to get Jillian. We all hear her talking to hear. She really has to convince my sister to come out. She even has to remind her of their friendship. But eventually Jillian walks out with Nicky behind her. Jillian has put her clothes back on and she is still looking wounded.
The first thing she sees when she walks out is the four of us standing at the edge of the swimming pool waiting for her. We are all stark naked, our legs spread and our hands on our head. A smile comes on her face and suddenly she puts her hand before her mouth and starts to chuckle. When she turns around she finds Nicky is stark naked too and standing in the same posture, she can't hold her laugh anymore. She embraces Nicky and kisses her.
"Oh," she sighs, "I'm glad to have friends like you!"
We all relax. I pick up the tray and fetch some drinks in the kitchen. When I return I see my sister lying naked in Nicky's arms. I raise my eyebrows, but she smiles.
"I didn't want to be the only one clothed, so I took them of", she explains.
In the evening we all are lying in the seats. I'm lying in Jamie's arms and Nicky makes it cosy in Jillian's arms. Lily and Piper are spread out on their bellies in the grass.
"Why don't we stay here for the night?" Piper puts in.
Everybody joins in and soon the four girls are calling their parents. When they return, Jillian has an angelic smile on her face.
"This is the best birthday party ever!"
And you know: we all agree.