A few years ago my wife Ellen and I went on a holiday to the Nth Coast of NSW, Australia. Whilst we were staying at Port MacQuarie, we decided to go on a canoe day trip up the river. We arrived at the jetty about 7am to find another 7 people already getting their gear ready. There were a couple of female Swedish backpackers, a Dutch couple, James our guide and two American guys, one of whom was an athletic negro named Robbie.

We introduced ourselves and I couldn't help but notice the way my wife was staring at Robbie as his shirtless, muscled torso rippled and glistened in the early morning light. I had a stupid grin on my face thinking that at least now she couldn't whinge if I perved on the Swedish chicks and the Dutch babe (who was the better looking of the three).

We climbed into our canoes and headed off up river, passing by an island of Pelicans, a few Oyster farms, some Mangrove Wetlands eventually stopping at a little riverside park for breakfast. All the way there I had tried to keep our canoe to the rear so I could watch the Swedish pair, but that also mean't we were right behind Robbie and his mate.

The guide had put on a great breakfast for us consisting of cereal, tropical fruits and fresh juice. We sat around on the river bank talking and enjoying the sunshine for a while and then it was time to get moving. I'd been so intent on perving at the Swedes tits that I hadn't noticed Ellen strike up a conversation with Robbie. I helped the guide pack up the gear and load it into his canoe while Ellen slipped off to the toilets. Five minutes later we had finished loading the canoes, so I decided to go for a slash too.

I walked into the mensroom and was about to take a leak when I heard a low moan eminate from the closed cubicle behind me. I listened closer and was sure I could hear someone sucking in their breath. I smiled to myself and thought one of the guys must have been wanking himself, probably over the Swedish pair, when I heard an american accent say, "Oh yeah baby; suck that dick". I went over to the closed door and sure enough, I could just make out the wet slurping sounds of someone sucking a cock!!

My own cock became instantly hard. I moved quietly into the adjacent stall and climbed up onto the pan so I could take a peek over the wall. What I saw nearly made me fall backwards into it with shock! There was my beautiful wife Ellen, on her knees like a total slut sucking the biggest black cock I had ever seen!! Robbie had one of his hands on her left shoulder and the other at the back of her head as she enthusiasticly bobbed up and down on what must have been at least a 10inch pole. Instead of getting angry, I got enormously turned on and dropped my own cock out of my pants to stroke it in time with her movements. Robbie was groaning louder now and Ellen was moaning in little whimpers as his cock slid back and forth down her throat. I was just starting to get to work on myself when she stopped suddenly and stood up. I quickly dropped down so they wouldn't see me and then heard her say that there wasn't much time and she wanted him inside her cunt.

"Fuck me," she said "I want to feel that big black cock up me."

I was just about ready to burst when I heard this, and started to furiously pound away on my cock. Though I couldn't see them, I could tell when he entered her because she hissed,

"Oh christ...yessssssssssssss!"

I waited patiently for a few moments before sneaking another look. When I did, I found her standing bent over against the stall door, legs spread with her shorts and panties hanging around one ankle. Robbie was pounding his thick black weapon into her from behind and she was obviously enjoying the difference between his ebony monster and my pale 7 incher? The contrast of his dark black cock and her creamy white arse was something to behold.

Ellen was urging him to fuck her harder and reached under herself to fondle his heavy balls. He was really giving it to her now and sweat was pouring down his back. When he groaned that he was about to cum, she asked him not to do it inside her as she wasn't on the pill. I was very relieved to see him pull that amazing fuckstick out of her unprotected little box but I have to admit a part of me deep down inside would really like to have seen him ignore her and fill her up with his cum. He blew spurt after spurt of thick white cum on the cheeks of her arse for what seemed like an eternity, then Ellen span around and dropped to her knees to take his still spasming cock back into her mouth.

That was too much for me and I blew my own sticky load off against the wall of my stall. I tucked my softening cock away and quickly raced back outside so they wouldn't know they'd been discovered. Robbie returned first and I saw him give a little wink and whisper something to his mate who laughed and gave him a "high five". Next Ellen came back but she pulled away when I went to kiss her. (I wonder why!)

When we finished the tour I was so horny I couldn't wait to get her back to our hotel so I could fuck the daylights out of her too. She wasn't too keen on it though (i guess she was a little sore?)but she agreed to suck and toss me off before going to bed for an afternoon sleep.

I haven't ever let on about what I saw that day, but I often relive it while we're having sex. Sometimes I wonder if she's ever done it again? Anyway, I might bring it up one day and who knows, maybe we'll have a threesome or something?