I first got to know Helen properly when I showed her up my local church tower. Our subsequent encounters had been equally exciting, and we had reached a stage where we had the occasional pub lunch together as well as other entertainment.

On this occasion, having finished lunch, we decided to walk back to the village the longer way through a local wood, mainly as it was a hot day and the shade of the trees would make for a cooler walk. I was wearing a cotton shirt and light slacks. Helen was in her signature short leather skirt, red blouse, and knee-high boots. The boots meant she was wearing stockings. She doesn't believe in tights.

We were suddenly aware of a moaning sound as we walked along one of the secluded paths. I thought it might be someone injured, but Helen, who is much more worldly-wise than I, recognized the sound for what it was and indicated silence. We crept forward, and in a small clearing at the edge of the path, we saw a young couple in the throes of passionate fucking. Her knickers were to one side, and her blouse was wide open, displaying a beautiful pair of tits. His shorts and briefs were off, and with her legs wrapped around his back, we could see a substantial cock sliding in and out of her cunt and clearly giving her a great deal of pleasure from the sounds she was making.

We paused to watch. I hugged Helen to me and pressed myself against her back. I slipped one hand into her blouse and began to play with her nipples. In return, she slid a hand behind her and grasped my erection through the thin material of my slacks.

"I want to join them," Helen whispered.

"So do I. Let's see how it goes," I whispered back as I slipped my other hand up her skirt and began to stroke her rapidly dampening panties.

"God, watching makes me so horny," said Helen.

"Me too," I replied, "How about we ...." At that moment, a movement caught my eye, and I saw a young man appear a few feet away at the edge of the clearing. He was stroking a lovely, stiff cock as he watched the couple who were still involved in their own pleasure.

"Look right," I whispered to Helen. She did, and gave a slight gasp. This was enough to draw the man's attention to us. When Helen realized he had seen us, she indicated for him to join us. A beckoning finger, followed by her lifting her skirt so that he could see her wet knickers, and my busy hand inside them was all the encouragement he needed. In case he had any doubts, Helen mouthed the words "I need fucking," and so he joined us a few moments later. When he was close enough, Helen grasped his erection and said, "Pull my knickers down, I need this inside my cunt". He looked at me, and I nodded to let him know that he should get to work. At the same time, I slipped my hand from inside her knickers and lifted her skirt above her hips. The man pushed her panties down, and Helen guided his big, hard cock into her juicy cunt with a heartfelt sigh of "Oh yes! I love a hard cock, now fuck me".

As the stranger began to do as he was told, I whispered in Helen's ear, "I suppose you want me to fuck you too".

"Oh yes," she said, "good and long and hard and deep". As she said this, I unzipped my trousers, much to my relief, as my cock had been bursting to be free since we had first spied on the randy couple enjoying their fuck.

I slid the tip of my stiff cock up and down the valley between her bum cheeks and tickled her tight little hole with my pre-cum covered cock head. She was deliciously wet down there, and with all her juice, it took no effort to slide my stiff erection into her willing arsehole.

"Deeper", Helen whispered as she wrapped her legs around our new companion. I could feel his thrusts sliding against mine as I slid my stiff cock into Helen's willing arse.

"More", she demanded, "I need to be properly fucked".

"You're just a horny slut aren't you?" I said, "Who loves to have hard cocks in your holes?".

"Yes, yes, fuck me. fuck me. I want to feel your cocks cum together".

Under the circumstances, it did not take long for the young man and me to reach our climaxes with Helen bucking between us. Even as Helen came, we continued to stay in her. When we withdrew, Helen and I collapsed on the grass. The young man did not stay around, and when we had recovered, we found we were on our own. I don't know if the couple we had been watching watched us. I hope so. Helen couldn't see her knickers, so I guess the young man had taken them as a souvenir.

"That was a lovely adventure," said Helen.