I was surprised and delighted to receive a phone call from the sister of my ex-girlfriend. I hadn't spoken to her for many years, but she was always very friendly toward me, and good fun to be with. She was after some contacts for a job she'd just been given. I gave her the information she needed and we continued chatting, reminiscing mainly about her sister and the life we shared all those years ago. She reminded me of a funny story when she came to London to visit, probably twenty years ago or so.

She had just had a baby boy in Dublin where she lived. Somewhat surprisingly, she'd wanted a weekend in London with her boyfriend, rather than looking after the newborn bairn. They stayed at her sister's apartment in London. We went out with them on Saturday night for a delicious Italian meal, a few drinks, and a good few laughs. After the meal, we returned to the apartment for a nightcap or two.

The pleasantries of the evening were soon forgotten, though. On Sunday morning she was in an increasing amount of pain. She was breastfeeding her son, but as she had left him at home, her breasts were filling with milk.

I was sent out in my car with her to find a chemist who would be able to furnish her with a breast pump. We drove to about six such establishments but, as it was Sunday, all were closed. As time moved on, she was getting more and more distressed, and I was getting more and more bored.

"Look," I said. "This is pointless. Why don't you go back to the apartment and get your boyfriend to suckle them?"

The suggestion caused her to screw up her face as if I'd gone too far. But then, as she thought more about it, her expression changed as she could see that it was a sensible solution to her predicament. I was ready to drive her back when she shook her head and said her boyfriend was too much of a Puritan and would never do it. "You can do it instead!" she exclaimed, with a look of lascivious glee.

I was quite flabbergasted, and uncertain about the ethics of suckling the breasts of my girlfriend's sister in broad daylight. But I could see how upset and in pain she was, so I agreed, somewhat reluctantly. I quickly found a quiet place to park in a deserted shopping centre. She opened her blouse and I helped her unclip her bra. My reluctance diminished a little as I gazed in admiration at the sight in front of me.

Her breasts were certainly showing the effects of childbirth. They were full and rounded and looked quite awesome. I wasted no time before I bent down and took a nipple into my mouth. I suckled each of her breasts in turn. It took a while to hone my technique but after about five minutes I got a good flow of her breast milk which I enjoyed for about thirty minutes. I found the milk very sweet, but not at all unpleasant. She lay back in the car seat, and seemed to be enjoying my work, although that may have been the easing of her discomfort as I emptied her breasts.

As I suckled, my hand moved, almost instinctively, between her thighs. When I realised what I had done I quickly started to withdraw, but then I felt her opening her legs as if welcoming my hand. I started gently caressing her thighs, getting closer and closer to her panties. I traced the hem of her panties then ran my fingers over her mound. She was clearly aroused. The heat radiating from her pussy was very noticeable as was the ever-growing wet patch. I'd expected her to stop me, but instead, she moaned as if encouraging me.

I slowly rubbed her through the material of her panties and she started to utter a low, guttural moan. I felt emboldened as I slipped my fingers underneath her panties and slid them along her hot engorged lips. I wet my fingers with her juices and slowly opened her, before sliding two wet fingers deep into her most intimate part. She gasped as I held them there, deep inside her wet, hot pussy.

She threw back her head as I started to finger fuck her, pushing my two fingers deep inside her with each probing thrust. I then changed my finger position to allow me to slowly and gently caress her clitoris. The euphoric look on her face and increasingly loud moans encouraged me to increase the pressure on her bud. I alternated arousing her clit with deep finger fucking and soon her breathing was a series of guttural pants and shouts of "Yes!"

It was no surprise when her body shuddered as she climaxed. I eased off, allowing her to enjoy the experience fully before removing my now dripping hand.

"Oh my God," she said. "That was amazing."

We kissed deeply and I felt her hand move to explore the arousal inside my shorts.

Still kissing, she unzipped my flies, took my cock out, and started giving me a handjob.

"I think you deserve this," she said, with a glint in her eye. She lowered her head to my cock, licking it down the entire length then delightfully concentrated on licking all around the "head". I loved the sight of her thick lustrous hair as her head started bobbing as she took my now rampant cock deep into her hot wet mouth and throat. She sucked it with obvious relish and it was my turn to make guttural noises.

She managed to invade my boxers with her hand and she accompanied her sucking with a nice gentle caress of my hairy balls. It was so good that it didn't take long for her to make me explode in her mouth. She kept my cock in her mouth as I spurted four or five hot loads. Only when I'd finished did she raise her head, show me the mouthful of my sperm, and without batting an eyelid, swallowed the whole lot!

As we made our way back home, we both decided we had a fair amount of explaining to do!