As a 50-something bloke I've had Bi fantasies since I was a teenager, fantasies that for a number of reasons I've never followed up (being married, for one, together with 'what if I get caught?').

Anyway, I'm inbetween jobs at the moment, which is the perfect time for things to go wrong, requiring money to fix them.

The other day, the tumble dryer threw in the towel (no pun intended), so we called an engineer. On the day of his visit I made him a coffee and set about doing some stuff on my laptop while he looked at the tumble dryer. As we chatted, it turned out that we were both ex-military and so we began swapping 'war stories' and inter-service banter (I'm ex-navy, he was ex-air force).

Bob (not his real name) looked to be in his forties and clearly worked out. He was also camp as you like, and very soon the conversation turned almost flirtatious.

I asked if he wanted another coffee. He said yes so I stood up and took his mug. I was wearing grey jogging bottoms and caught him glance at my groin and raise his eyebrow. I turned to fill the kettle with water and as I leaned over the sink, Bob said, "Nice bum".

I laughed and said thanks. Next thing, Bob was standing behind me. "Mind if I touch it?" he said.

My heart gave a leap. Then I heard myself say, "Help yourself."

Bob's hand felt strong, and as he kneaded my buttocks, his middle finger reached between my legs to briefly touch the underside of my balls. I froze. Not sure what to do, my heart racing. Then Bob's hand slipped inside my brief and I felt his fingers stroking my bare arse - the first man to touch me like that! I felt Bob's finger push against my anus and tuned to push his hand away. "I'm not quite ready for that," I said.

"Looks like you're ready for something," Bob said, staring at the outline of my growing cock. "May I?" he said.

My mouth was dry. I could barely speak the words, "OK."

Bob stroked my cock to full hardness then knelt before me and in one movement pulled my jogging bottoms to my knees and took my cock in his mouth. The sensation was incredible, better than any blow-job I'd had before. Gently I pushed him away. "My turn," I said.

Bob stood up as I knelt before him. My hands shaking as I undid his belt, unbuttoned his trousers and lowered the zip. His cock was huge, straining against the material of his briefs. I could see the dark stain and smell the unmistakeable musk of pre-cum. Heart pounding I lowered his briefs and gasped as his cock sprang free.

At last.

I licked the tip of him, tasting his precum, my lips tight around his bell-end as I cupped his balls. Bob shifted slightly and I moaned as his stiff cock filled my mouth, then gagged as it reached the back of my throat. I sucked him for a few moments, revelling in the excitement of my first gay encounter, then Bob pulled back. "I haven't got time for a proper session," he said. "Let's bring each other off."

We stood together, and I gasped again as Bob simultanously grabbed my cock and placed my hand around his. We wanked in a rhythm of slow, gentle strokes. I dragged my thumb over Bob's soaking tip and was rewarded with a groan of pleasure. The wanking became more frantic. Hips thrusting in time with the urgency of our hands, both of us gasping as the inevitable drew close.

At the last moment Bob placed his cock against mine and grabbed them both in his rough hand. The feel of his hard cock against mine was too much and we both cried out as we came together. I hade ejaculated so hard in my life. Jet after jet of hot cum splashing against Bob's stomach as I felt his cum erupt over me, Swiftly, Bob knelt down and licked my body clean of his cum, then after I did the same for him we stood and kissed, tounges in each other's mouth, each of tasting the other's sperm.

And then we were fully dressed. Bob winked, "By the way, the tumble dryer had a loose wire, so I won't charge you."

After he left my head was reeling. I could still taste our combined cum, and felt myself grow hard as I relived our glorious, sexy encounter.

I'm now on the laptop, googling how to sabotage a washing machine...