All these events took place during the course of one very long and hot summer when I was growing up. All the people in the story were over 18 years of age.
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The walk to the reservoir took longer than usual. There were frequent halts while one or both of us would push Sue up against a tree or wall and reach under her skirt or up under her blouse to touch or play with her body. She never objected and was always accommodating to our somewhat crude and coarse use of her; and we did use her.
We would raise her skirt and make her sit or lay with her legs open while we inspected between her legs to prove either one point or another. We talked about her as though she were not there while we opened her blouse or pulled up her skirt. And whatever we did to her or how crudely we used her she never objected or seemed embarrassed, in fact she seemed to positively enjoy our attentions and would allow us to spread her legs or bend her into whatever position we wanted; whenever and where ever we chose.
The sun was high overhead by the time we reached the water and the day had again grown hot and uncomfortable. We climbed over the stone wall that formed the boundary of the reservoir and began to walk the pathway which skirted the edge of the water. From above the reservoir was shaped a bit like a boomerang with serrated edges, all twists and turns with small trees and bushes which was great for trespassers like us as it gave lots of places to duck out of sight should the wardens turn up. The reservoir was the property of the water board and in those days was strictly off limits. Not that the 'Private Property, Trespassers Will Be Prosecuted' notices ever really bothered us; if the wardens ever spotted us they would yell a lot and they did sometimes give chase but in the main we never saw them.
As we continued our walk, heading further around the perimeter to a secluded little spot we knew where the bottom of the reservoir slopped gently away and you could paddle and cool your feet when, as we rounded a bend, we walked into Mike and Roy, sitting quietly off the path smoking a cigarette in the shade of a small tree.
"Good job I'm not the warden," he said casually, "saw you coming ages ago."
"We weren't trying to hide," said Dave, "and it's far too hot for the warden to be around."
"Been here long?" A voice from behind them surprised us and suddenly Jackie's head appeared between their shoulders.
"Not long," she said, "just long enough to get my feet wet" and she held up her socks and shoes as if to prove the point.
Sue seemed the most startled, "What are you doing here?" She asked a little sharply.
"Now, now, sister of mine" Jackie replied scrabbling around Mike and sitting between them "I was invited, wasn't I Mike?"
Mike looked sheepish and nodded. "No problem is there?" He asked.
"No" Sue answered a little too quickly "no problem at all, just a bit of a surprise that's all."
"I'm not pushing in am I?" Jackie said a little slyly, the question somehow pointed and heavy in the already hot and heavy air. "Not spoiling your fun?"
Sue pushed the question aside lightly "Not at all, the more the merrier I always say."
Jackie pulled some weed from between her wet toes "Good, hate to be a party pooper."
Sue grabbed Dave and I by our arms and pulled us along the path, "Come on then" she said brightly "let's go on a bit."
Dave and I looked at each other and shrugged, something had happened just then between the two sisters but we didn't know what. I looked over my shoulder to see Mike and Roy pushing themselves up to their feet to follow us. Jackie said something that I could not hear and Mike leaned down and grabbing her ankles tipped her over backwards into the gully at the side of the path.
Jackie disappeared from view with a shriek. Mike and Roy casually turned and began to saunter along the path behind us. As I watched Jackie, looking slightly miffed, pulled herself back up on to the path scrabbled around for her shoes and socks and raced to catch up to Mike and Roy, barging her way in to walk between them. Mike casually rested his arm around her shoulders and pulled her closer before pushing her away in the same movement, Jackie staggered forward laughing.
We walked on until we came to our usual spot, a secluded patch where it was possible to swim or paddle without being too visible. The trees and bushes swept down on either side effectively enclosing the area. We had swum here many times, often skinny dipping when there only us boys about. We sat by the water's edge waiting for the others to arrive. Sue pulled her shoes and socks off and Dave casually tossed a stone out into the water.
"Did you know she would be here?" Sue asked quietly, the question addressed to whichever of us wanted to answer it.
Dave and I shrugged, "No idea" Dave said "didn't even know Mike and Roy would be here. Why?"
It was Sue's turn to shrug "No reason, just surprised that's all."
"Is there a problem?" I asked.
"No, no problem," she answered "just surprised."
The others caught up with us and the guys settled down together while the girls walked on a few paces before sitting down, heads together, talking as girls do. "What's she doing here Mike?" Asked Dave.
Mike shrugged "She wanted to come."
"You going out with her?" he asked.
"Naw, just brought her along. She's a nosey little bugger. Wants to know what we get up to." He looked meaningfully at Sue. "Asking all sorts of questions."
"Like what?" I asked.
"Like who's had her sister."
I raised my eyebrows. "She asked that?"
"Not in so many words but the meaning was clear."
I thought about the implications. "Bloody hell. If she splits on us all hell will break loose."