I stared through the large old fashioned keyhole into my oldersisters bedroom as she got dressed for school. She wasn't doing it slowlyor even verysensously, just very matter a factly like she did most daysthat I watched her, but I stillfound it incredibly exciting. Just the sightof her golden tanned legs,flat stomach, round ass, large breasts, and glimpseof her pink, poutingpussy lips were enough to drive me into a frenzy andturn my dick into a tent pole.

On certain glorious occasions, she would have to bend over to pick somethingup when still nude and then I would catch a glance of her ass in all it'sglory and once I even saw her puckered little anus and was overwhelmed withthe desire to push my tongue up it until my face wasburied between her cheeks.

When she pulled the last of her clothes on, Iquickly stood up and walkedback into my room.

I was surprised this time when I returned to my room, because Susan oneof my younger sisters was in my room watching my television.

"Hey, squirt! what are you doing in my room?!? And who said youcould watch my TV?" I yelled at her.

Susan turned to look at me. I couldn't help but notice the way her eyesstaredat my erection which was still evident through my jeans.

"Mom said I could, cause she's watching news downstairs and I wantedto watchcartoons." she explained.

I had sat down on the bed next to her and kind of leaned foreward tohide my erection. It was hard being the only boy with three sisters anda mom, with no other brothers or father around the house. My parents weredivorced and Mom never brought the men she dated around to the house. Andshe wouldn't let my older sister bring any boyfriends around either. So99% of the time I was the only guy in the house.

My older sister was Rachel, she was sixteen and miss popular in school.A cheerleader and a straight A student, Mom was so proud of her. I got sosick of hearing, why can't you do as good in school as Rachel and Why don'tyou have nice friends like Rachel's? Of course my resentment to her didn'stop me from drooling over her body every morning.

Susan was 14, but despite already developing a body similar to Susan'sshe still acted like a kid. Always watching cartoons and sucking on lollipops.She was my favorite sister and the one I got along the best with, despitealways barging into my room without being asked.

Christa was the yougest, she was the baby and got away with murder. Elevenyears old and spoiled rotten. Mom doted on her and Christa used her to getwhat she wanted. And she never gave up the chance to get me into trouble.She was already tall. As tall as Susan, but had only just begun to developbreasts.

And then there was me. A 15 year old boy of average height and build,not too bad looking, but no Brad Pitt, surrounded by girls at home, butunable to meet a single girl outside of the house who seemed even willingto talk to me.

So there I sat with my 14 year old sister watching cartoons on my bed,with an erection that showed no signs of abating, when I happened to lookover and notice that the skirt Susan was wearing and worked it's way upher legs with all her squirming and now revealed the bottoms of her pinkpanties. My eyes traveled up and down her legs, admiring them, but alwaysthey were drawn back to her panties and the outline of her ass beneath thethin summer dress she wore. Susan was totally oblivious to my gaze as sheintently watched her cartoons. I laid back onto the bed so that I lay nextto her, only I lay on my side facing her, with my my head next to her feetwhile she lay on her stomach with her face cupped in her hands. From mynew angle I could look straight up her legs and under her skirt. I had anincredible view of her young shapely ass. Staring at the flesh on her legs,so smooth and tan from all the time she spent playing outdoors, I felt compelledto touch them. Tentatively reaching out my hand, I stroked her pink foot,from the toes to the heel. She flinched and kicked her foot up.

"Don't tickle me Tom, you know I hate that," she said not turningfrom the television. I did it again. This time she didn't say anything,just sighed and kicked her legs further away. This time I ran my hand upher leg from her foot to just behind her knee and tickled her there. Shesquealed and rolled over laughing. "Don't Tom," she said withmock fear. I did it again, and squealed again, rolling over again. I movedtowards her until our bodies pressed tightly against each other and I begantickling her sides. She laughed and squealed, kicking her legs and tryingto push me away. "Oh no you don't," I said. "I'm going toget you for watching my television." I spun around and threw my legover her so I straddled her and began to really tickle her like I used todo when we were both really young.

She laughed and squirmed her delicous young body between my legs. Herstomach rubbed directly against my now erect more then ever dick and myhands ran all over her body, across her stomach, down her sides, brushingover her breasts, into her armpits, her kneck, and her legs. She laughedso loudand long, tears began pouring out of her eyes, finally when she couldbarely breathe from laughing, I rolled off of her.

Her skirt had completely become hiked up around her waist and I couldseeher panty covered pussy almost perfectly. The outline of her hair andlips protruded through the fabric.

But while I was watching her golden thighs and panties, Susan launchedher counter attack and jumped on top of me, and started tickling me. I couldhave thrown her off with ease, but I was enjoying it immensely. Her lithelittle body bounced all over me, rubbing and gyrating right on top of mydick. Her boobs were bouncing all over her chest the erect nipples showingthrough the fabric and proving that she wasn't wearing a bra.

With the sight of my sisters already that morning and the feel of Susanall over me, I shouldn't have been surprised by what happened next, butI was.

Suddenly in mid tickle, my dick lurched, my balls surged and I was cominglike a frieght train in my pants. I stopped laughing and grunted, my hipsbucked involuntarily and drove my dick against my sisters pelvis.

She yelped as she felt my hardness press against her and stopped allher tickling. Although it felt like hours, it took only seconds before Istopped cumming. Susan slid off me and I just lay there with my eyes closed,too embarrassed to open them. Susan didn't say anything and finally I openedmy eyes. She was staring at a growing wet spot on mycrotch. Her eyes werebig and round. When she realized I was looking at her, her face grew pinkand she looked away. She hopped off the bed and straightened her dress.

"I think I'll go downstairs and play," she said and quicklyfled the room. After lying there for a few seconds, I stood up grabbed afresh pair of underwear and jeans and walked into my bathroom. I strippedoff my pants and underwear. My penis although now flaccid, still seemedto be pulsing and hung down at least five inches. Cum slowly dripped fromit's tip. I washed up in the sink and bent over to pick up The fresh pairof underwear when the bathroom door opened and my youngest sister Christawalked in.

"Mom says to come down to break...." she started to say, butstopped when she saw me half-naked. She took a long look at my dick, andI swear she smiled with a glint in her eye, before she ran screaming fromthe room. "MOM!!!!!! MOM!!!!!! Tom showed me his thing!!!!!"

Hurriedly throwing my clothes on I ran after. I almost killed myselfrunning down the stairs, but Christa was way ahead of me. I found her inthe kitchen with our mom.

"And then he made me look at his thing!" she was saying.

"Thomas! What on Earth have you done to this child!" my motherdemanded.

"Nothing mom, she walked into my bathroom without knocking,"I told her.

Mom eyed me suspiciously, but turned to Christa. "Is that true?"

"Well maybe, but I still saw his thing. It was huge!!!" Christasaid.

My face grew red with embarrassment as I realized Rachel and Susan werehearing all this too.

"Now that's enough about what your brother's thing looks like."Mom said.

"Lets go eat breakfast."

At the breakfast table I had a hard time meeting anyones eyes, especiallySusan's. At least I knew Rachel would sympathise with me about Christa.She tattled on her more then she did me.

Finally it was time for us all to leave for school. As my sisters walkedout in front of me I watched each of them with a different emotion. RachelI watched with desire, Christa with loathing, and Susan with lingering curiousity.

It was still only spring, but summer was just around the corner. It promisedto be a hot one.