One night, as I’m lying in bed, I hear a noise outside my window. At first, I think it’s probably next door’s cat, who likes to use the flat roof below as a shortcut. Then I hear a soft curse, and figure that it’s probably not the cat after all.

When I go to my window initially I see nothing. Then, when I stick my head out and turn to the left, I see a pair of feet disappearing into Cassie’s window! Woah! Naughty Cassie! Well, it’s either her boyfriend John, or a burglar. I wait for a few minutes, and when there’s no scream, I assume it’s probably John.

I’m surprised: I’d met him a few times when Mom invited him round for a meal, and I remembered him being very quiet and well-behaved. To be honest, I thought he was a bit of a nerd. How wrong was I? Way to go, John! I know that they aren’t taking quite as much of a risk as you might imagine: it’s an old house, much extended, and Cassie’s room is in an out-of-the-way corner. Then again, of course, there had been ‘The Incident’.

Mom had gone into my sister’s room unannounced one night while Cassie had been masturbating in front of her PC, and she’d gone absolutely bat-shit.

When I went in to see what all the fuss was about, Cassie was standing in the middle of the room, stark naked, stamping her foot and pointing aggressively while verbally haranguing Mom. I was fascinated at the time that she didn’t have any hair on her pussy and by the way that her breasts were jiggling so beautifully. That was the first time I’d ever gotten a tingle from a girl.

“What’s going on?” came Dad’s voice from the hall when he too turned up to see what all the ruckus was about.

“Go away!” three voices shouted pretty much in unison, and we heard him grumbling to himself as he walked away. That was the last time that anyone ever entered Cassie’s room without being invited in.

I climb out of my window and creep across to hers. I grin when I look in - they are both naked, and John is between her legs licking her pussy! I’m aware of pussy eating, having seen it in porn, but you never know how much of that is faked. Watching Cassie’s reactions though, I’m in no doubt as to how amazing it feels to have a soft, wet tongue lapping at your pussy: she’s clearly in heaven, moaning softly, playing with her titties, and throwing her head from side to side. It’s so fucking hot that I can’t help rubbing my own pussy through my nightie.

When she cums, it’s incredible: she’s bouncing around on the bed and John has gotten hold of her butt, and the slurping noises he’s making are amazing. I am so fucking jealous - I want some of that! I don’t know if I make a noise in my excitement, but Cass begins to raise her head and I hurriedly duck back out of sight.

I sneak back to my room, strip off my nightie, and then stand in front of my full-length mirror, wondering whether anyone will ever find me attractive enough to kiss me that way. I stroke my breasts fondly, they are only small, a B-cup, but a nice shape. I’ve still got a little puppy fat, so not too much shape to my fifteen-year-old body, but it does mean that I’ve got a nice plump but firm ass. And last but not least, my pussy. Delightfully chubby and my very favourite bit, ever since I discovered how much lovely pleasure it can give me. I run my finger through the small patch of soft fur above, before moving lower and teasing my lips, reigniting the tingles that had just been beginning to fade.

I feel an urgent need to cum, and I lie on top of the covers touching myself, imagining that it’s John’s mouth on me. It’s nice, but nothing compared to what I’ve just seen. I think about the boys my age at school and how they’d react if I asked them to lick me down there, and know that either they’d instantly cum in their panties or would be totally grossed out.

I’m still lying there when I hear another noise outside. Is that John leaving? I start to grab the quilt to cover myself up and then - it’s crazy and probably just because I’m so turned on - I leave it. I want him to see me!

As he’s passing, he’s bent low and not looking in. I cough delicately and he stands up and looks my way, his eyes opening wide as he sees me. I give him a friendly little wave, and he waves back and leans on the window sill.

“Hi, John,” I say, trying to sound casual, but the way he’s looking at me is making me tremble.

“Hi, Zoe,” he replies, grinning.

“I ... saw what you were doing to Cassie just now,” I tell him with a mischievous little grin of my own. “When you were licking her ... you know.” I look down at my pussy and so does he. My lips are wet.

“Oh, did you?” he says, looking surprised but not pissed.

“Would you do that to me?” I ask, aware that there is an edge of pleading in my voice.

“Zoe, I promise I would like nothing more than to do that. But if Cassie found out she would literally cut my balls off and feed them to me.” I think about that: he’s probably right ... but she is clearly much naughtier than I’d thought.

“Maybe ... or maybe not,” I say hopefully. I can see him thinking about that. I can also see him looking at my pussy and licking his lips.

“We could go and ask her?”” he ventures finally. I jump off the bed and head toward the window. “Maybe you should...?” he suggests, nodding his head at my nightie which is lying on the floor.

“Oh, yes,” I say with a giggle, turning back and bending over at the waist to pick it up. When I turn back, he looks guilty and is pulling his hand away from his crotch; I’m liking John more and more.

He helps me to climb out of the window and I also very much like the look of the lump that he’s got in the front of his pants.

As I approach Cassie’s window, I hear her voice, “So you couldn’t keep away, huh?” As I look through the window, she’s lying sprawled on the bed, one hand cupping her breast and the other between her legs, stroking her lips. My vagina clenches hard at the beautiful sight. “Needed some more of-- Shit! Zoe! What are you doing there?” she hisses when she sees me, trying to cover her breasts with her arm and her pussy with her hand, but not before I see that she’s still all bald down there. It looks lovely.

Then she must see John’s head behind me. “John, what the fuck?!” He urges me over the sill, and I hear a gasp from behind as my nightie rides up and I feel cool air on my backside.

“I’m sorry, Cassie. I couldn’t help it,” he explains, clambering in behind me. “She was watching us earlier, when I was eating you.”

“And...?”

“And she wanted me to do it to her.”

“You could have just said no,” she suggests archly.

But she looked like this...” he says, and the next thing I know, he’s drawing my nightie up. I instinctively raise my arms to help, and my pussy clenches again as it comes off and I see the look on Cassie’s face: she’s devouring me with her eyes. John begins to run his hands up and down my sides, making me shiver, and my already hard nipples start to ache.

“Yes,” Cassie says softly. “I see your point.” She’s touching herself again while she’s looking at me! Finally, her eyes stop their hungry journey over my body and settle on my face.

“So you were trying to steal my boyfriend then, Zoe?”

“Not steal so much as borrow,” I explain, unable to keep my eyes off her busy fingers. “It looked so ... beautiful.” Her fingers, toying with her pussy, his hands caressing me, and the lump that I can feel brushing the cheeks of my ass, are all driving me crazy, and I’m pretty sure that I’m a picture of desperation.

“Come over here, Zoe,” she says, patting the bed beside her. I jump up and scootch over next to her and she puts her arm around my shoulder.

“Is it as lovely as it looks?” I ask her. It comes out a bit pitifully, but I don’t really care.

“It is,” she tells me with a fond smile. “Are you sure that you want to do this?”. I nod, maybe a bit frantically, and then we both look at John, who grins like a lunatic and nods too.

To begin with, he just kisses my inner thighs. I say just, it’s amazing, so, so sensual, and it sends shivers up and down my body. Then he kisses my vulva: soft, tender kisses that make my clit feel like it might burst, before finally placing his lips over my clit hood and squeezing it gently.

I open my eyes to see Cass leaning over me, but she’s not looking at me, she’s looking down at what John’s doing. “Ohh! Ohhh! Cass,” I gasp, grabbing her hand and holding it tight.

She looks up at me. “He’s good, isn’t he?” she says, smiling at me knowingly.

I’m about to answer when I feel his fingers gently opening me up! He’s looking inside me! I’ve never felt so utterly vulnerable, knowing he’ll be able to see how wet I am, and all my pink secrets. I can’t breathe ... and then I feel his tongue, deep inside me! He must really love it, because he’s lapping away furiously, and I feel Cassie’s hands on my breasts as well, pushing my ecstasy to another level.

When he starts to lick around my clit, it’s utterly divine. “Oh God, Cassie?!” I squeal as feelings far stronger than I’ve ever felt before flood my body. Then Cassie kisses me, her tongue enters my mouth at the same moment that John’s finger enters my vagina, and I surrender myself to a shuddering, mind-blowing orgasm. As I writhe and shudder, her darling boyfriend stops licking my now hyper-sensitive clit and is just dotting my vulva with gentle kisses; it’s all simply beautiful.

I’m so, so grateful to her and I want her to feel good too, so I seek out her pussy, finding it very wet indeed. She gasps into my mouth as I slip first one and then a second finger up inside her. She likes that a lot, wriggling around and grinding herself on my fingers. Not satisfied with giving me one awesome orgasm, sweet John is again ravishing my pussy with his fingers, lips, and tongue and I’m amazed when my body starts to respond again, my hips rising to meet his increasingly passionate caresses.

I hold my breath as I feel John pull up on my mound and my clit pops out: I’m so sensitive there that I hardly ever touch it directly. But he just softly flicks it with the tip of his tongue and it’s almost insanely gorgeous. I curl my fingers up, hoping to find Cassie’s G-spot, and rub in gentle circles over her clit hood with my thumb; her panting moans tell me that she likes that a lot.

We’re barely kissing now, more sharing gasping breaths as we both strive to climax. She goes stiff in my arms for several seconds and then cries out with joy as her vagina grips my fingers. Moments later, John sucks my clit between his lips and I explode again, and we giggle ecstatically as we cling to each other’s shuddering bodies.

As we both lie there, blissed out and trying to get our breath back, I feel John crawling up the bed. “Erm ... girls?” he says, and I open my eyes: he’s kneeling next to us, and I’m face to face with my first-ever erection. I am instantly in love. It’s both longer and thicker than my teenage mind has ever imagined, with a wicked curve to it. It’s so, so hard that it looks like it’s carved out of rock, and the whole thing is shiny with precum.

The expression on the poor boy’s face looks like nothing so much as a dog at the dinner table, watching everyone else eating sausages while he has none, and my heart goes out to him: I’ve had two orgasms, Cass has had one, and he’s had none! I want to stroke it and kiss it and lick it so badly! I look from Cassie, to his cock, and back to Cassie. She sighs deeply.

“Can I? Really?” I ask excitedly.

She makes a big thing of looking at her watch. “It’s gonna have to be quick,” she says. “If Mom or Dad go into your room...” But I’m not listening anymore: I reach out and stroke it gently with my fingertips and adore how hot and smooth it feels, and the way it keeps twitching. The tip is even hotter than the shaft and so tight and shiny. It feels gorgeous under my fingertips and I can’t help wondering how it would feel to my lips and tongue.

John moans softly and Cassie puts one hand between his legs and begins to caress his balls, while she fondles his ass with the other.

I dip my head and lick the tip, confused when it tastes vaguely familiar. “Oh God, that’s so good,” he pants, and his legs start to tremble. I begin licking all around the ridge below the head and John strokes my hair, groaning softly. As I let the tip slide between my lips, it feels like a big, hot, throbbing plum in my mouth, and I love it. Suddenly it hits me - the taste is familiar because it tastes similar to my pussy! I must be tasting Cassie’s juices from when he fucked her earlier!

“Come on,” Cassie hisses, clearly panicking about our parents. Me, I could have happily licked and sucked his lovely penis all night.

Out of the corner of my eye, I see Cass dribbling on her finger, then she puts her hand back on his butt and suddenly John groans loudly, his hips lurching forward, and his cock swells in my mouth. OMG, has she just stuck her finger up his butt?!

“Oh fuck, Cass!” he cries, and then his cock pulses in my hand and my mouth fills with hot, thick, creamy saltiness. It’s his cum and I love it, but I panic as it begins to leak around my lips. I tighten them and drink down what’s in my mouth just as the next load spurts out. I can feel Cassie’s hand on his balls, squeezing out every last drop as her other hand continues to thrust at his asshole.

I take my mouth from him when he begins to soften, and then lovingly lick a last drop that appears in the little slit.

“Good boy,” she tells him slapping him on the ass and then giving him a big sloppy kiss on the lips. She reaches for a conveniently placed pack of wet wipes on her bedside table and carefully cleans her finger. “He loves it,” she explains to me a little sheepishly. “And it makes him cum so fucking hard!”

John collapses onto the bed and Cassie and I snuggle up either side of him. “Just two minutes,” she says, suddenly looking all drowsy.

I idly stroke John’s cock, still loving it even though it’s now small and soft and a bit wrinkled. “What does it feel like ... you know ... inside you?” I ask her.

We look at each other over his chest. “It feels ... perfect,” she says wistfully. “Like it should always have been there and I never want it to leave.”

“Can I...?”

“No,” she says firmly. “If you got pregnant we would both be dead meat. And now you really have got to go back to your room.”

“But, I could go on the pill like you,” I argue, ignoring the last bit.

She hesitates and I know I’ve nearly got her. “I’ll go back to my room if you promise to take me to the Planned Parenthood center tomorrow.” She glares at me and I make a big show of cuddling up to John even tighter.

“Fuck,” I hear her hiss under her breath, and my heart begins to beat faster with excitement. “Fine,” she says, sounding exasperated but smiling. “I promise. Now go! Both of you!”

I squeal with delight, kiss her firmly on the lips, and then head for the window.

“Nightie,” John says as I skip past it. I giggle as I put it on, and then giggle some more as John helps me out of the window with his hands on my ass.

It’s all remarkably straightforward at the health center: they are all very caring and professional. Toward the end though, I lose focus a bit because I’m busy trying to work out how to say ‘When can I fuck a boy?’ without sounding like the desperate slut that I seem to be turning into. Luckily the nice lady supplies that piece of information without me having to ask: in my case, it’s a week.