It was early summer and I would need to take my vacation before those of my colleagues with families. My destination for this holiday was a sailing school based in an old converted Mersey ferry, moored permanently in the Salcombe River estuary.

I was there for a sanity check on my progress since last year. So, no single-handed dinghy sailing, but assisted by an Instructor, assessing my capabilities. I was paired with Sue, eighteen and fit, long curly dark hair, sparkly blue eyes and a really neat figure which she'd been displaying the previous evening in the ship's bar. She watched as I rigged the Scorpion dinghy, making sure that I'd fastened all the important ropes in the right way. It's embarrassing if your mainsheet runs out of its blocks and leaves you "engineless" just because you've left a stopping knot undone.

Assured that I had succeeded in rigging the boat Sue stepped into the Scorp, trailing a tantalizing waft of Diorella. I mentally raised an eyebrow - most sailors don't get scented up and then step into oilskins!

"Nice perfume," I said, as I followed her into Scorp's hull, taking the tiller.

She looked up at me and smiled a slow grin. I paused for a couple of seconds.

"Right, Sue, cast off please and back the jib!"

I pulled in the mainsheet and we started moving through the water.

"OK, Sue, release the jib and sheet in on the leeward side, please!"

The dinghy then jumped eagerly forward, I sat down on the side bench and set course for Frogmoor Creek, and Sue stretched out, tossing her hair in the breeze, running the fingers of one slender hand through the tresses to take them out of her eyes. She looked back at me and smiled enigmatically.

There wasn't a great deal of wind; just enough to keep us moving steadily through the Kingsbridge Estuary towards Frogmoor.

The sun was warm on our backs as we made our way towards the creek, and Sue set about removing her waterproof jacket. I thought she made a bit of a show of straightening her back and thrusting her breasts forward as she wriggled her arms out the jacket sleeves. But, whatever, the unveiling was entertaining and despite the fact that she was climbing out of unsexy sailing gear, somewhat sensuous.

She dropped the jacket into the bottom of the Scorp, then started to remove the sailing boots, followed by the trousers. When she'd finished she turned to me, looked me straight in the eyes and said "You're thirty five and, no doubt, experienced. My boyfriend at home is twenty and a virgin. Problem is, so am I! I want you to sort that out for me. Now! Just run the boat ashore, tip it on its side so it's not obviously here, and then take me in that field above the water. Show me what it's really like! Show me everything you know, and tell me your dirty fantasies at the same time!"

It was difficult to steer the boat and take in the sight of a lithe, tanned, curvy lady with very twinkly eyes, sitting on the gunwhale in just an athletic vest and silky running shorts, a good yard of smooth leg on each side of her magnetic body.

And it was all on offer. To me. Now.  She lowered one side of the vest so that I could clearly see her pert, port nipple. She rubbed it  with her thumb, licked her top lip, then swung away from me and pointed out a small inlet on the riverside.

"There! Turn in there!"

She stood in the front of the dinghy, already lowering the mainsail. The boat slowed, I pulled up the centreboard and we stepped out into about fifteen inches of salt water. I pulled the boat over, and followed this horny little lady up the side of the overlooking hill.

I walked behind her for perhaps fifty yards into the meadow-like field admiring the fact that nothing on her body rippled or jiggled. No excess, just ace athletic flesh.  She looked around.

"I can't see the river, so they can't see us," she said as she slipped off her vest and slid her running shorts down past her ankles, sitting, then lying down in the grass, completely naked, with her arms aloft, beckoning me into position.

I knelt on the grass beside her, my eyes sucking in the sight; long legs, short body, shapely, and nipples on firm breasts.

I lowered myself alongside her, and circled her left nipple with my tongue, and her right one with my fingers. She let out a strangled squeak, her hands wrapped around the back of my neck and her hips bucked whilst she pushed her breast hard into my mouth. My free hand went round the back of her neck and wrapped itself in her thick, long hair. I pulled her firmly towards me and whispered in her ear, "I'm going to make you come on your nipples alone!"

"Yesss," she hissed, "They're very sensitive, and I make myself come just tweaking them."

I licked, nibbled, swirled, tugged, feasting on those babies and all the time Sue was breathing more heavily, tensing and twitching, grinding her pussy against my thigh. A red rash spread up from her collar bone to her neck and cheeks as she accelerated towards her first climax, which arrived suddenly, like a lightning strike. She stiffened, thrust two fingers into her pussy and pronounced it sopping wet, and ready for her first cock.

I slid my shorts and boxers down to release the beast, reached into one of the shorts pockets to retrieve my wallet with condoms in the back, slipped one onto my rock hard seven inches and put her hand on what was about to invade her juicy pussy. She murmured appreciatively as she wrapped her fingers around it and pulled it towards her.

I helped, of course, lining it up with the entrance to her lovely young body, sliding the head up and down her crack, slipping from above her clit, down almost the end of her crack then back up to the top. I repeated this a few times withholding the pleasure she sought for a couple of minutes then gently pushed into the heat and wet. I slipped all the way in with such little effort, I raised an eyebrow at her.

"Horse-riding!" she gasped as I set up the rhythm, slowly, at first, gradually starting to pound seriously.

She was retaliating, thrusting back at me, her heels drumming their own timing on my buttocks.

"Slide your middle finger alongside my cock, " I said, "And I'm going to do a little rear exploring at the same time." I licked my own middle finger as I felt hers joining the beast in her velvety sheath, and slipped it over the puckered entrance to her ass. A deep groan from Sue.

"Oh God, that's fantastic! More, more!"

Her finger started emulating my cock, quickly finding her own magic spot and becoming very aroused indeed, her scent growing more pronounced as we both pleasured her pussy.

I slid the middle finger of my free hand into her ass up to the first knuckle. She paused the action while she adjusted to this invasion of her virgin rear passage and a couple of minutes later her ring relaxed enough for me to completely invade. With a groan and a growl from Sue we resumed her satisfaction, moving quite rapidly towards her second climax, an accelerating rhythm building between her finger, my cock and my finger in her dark place.

She had wanted my dirty fantasies recounted as we fucked so I obliged

"Imagine another girl watching us and doing herself as she gets really horny seeing our bodies moving to the age old dance of lust. She approaches and slides a hand between us. A moment later and you realise that she's going for your clit and plans to massage your magic button until you explode! She wants to co-ordinate your orgasms so that you go stratospheric at the same time!"

At this, Sue did indeed explode, crying out, stiffening  her body, her pussy walls grabbing my Love machine, bringing me to my climax. I tensed, shuddered and uttered a bass moan, then a grunt as I felt my juice rocket out of my body.

We held each other, panting, sighing, as we came down from our high. We smiled at each other, then rolled apart as I reached for the wine in our picnic basket. As I opened the bottle, Sue said "Well, I've certainly learned a lot today, thanks Ed. The weather forecast for tomorrow is the same as today's - can we move onto A levels then?"

I smiled.