3 can be fun

I met a couple online who lived some distance from, I travel sometimes for work and when I was in town we agreed to meet up for a drink.
We had a couple of calming drinks and then I invited them back to my room, they agreed. Both were older than me but both in great shape.
When we got back to my room we had another drink, the guy (John) went to the bathroom and I sat beside the lady (Mary. I put my arm around her and kissed her passinately on her lips.
As I did this John walked in, we hand't discussed boundaries as yet so I got a little nervous about kissing her. He seemed fine and I stood Mary up.
John moved behind and I kissed Mary again, after some more kissing we began to remove our clothes. John and I stood in front of Mary while she kissed and sucked each of our cocks in turn.
We moved to the bed where I went down and kissed and tongued her sweetness while she worked on Johns cock, taking him, he was bigger than me in fact his cock was huge.
I continued to work her clit with my tongue until she came, then I moved back up kissing her small breasts but wonderful firm nipples.
I put my cock near Marys mouth and she again sucked me, she then said something I never expected. "you can suck his cock if you like" I was turned on and leant down and took his cock in my mouth, it was huge. I was unsure what I was doing but he just let me suck his cock while he fingered Mary and she sucked my cock.
After a while John moved down and inserted his cock inside Mary, she started to suck my cock harder, teasing my balls, I reached down and teased at her clit and feeling Johns cock as I did it. He came inside her not long after and Mary also came for the second time.
John moved back up the bed and Mary said to him, your turn, John then looked at me and took my cock in his mouth, he sucked me off while I kissed and teased Mary all over.
Mary again came then I did not long after, leaving a load over Johns hairy chest and Marys breasts and stomach.
The night ended shortly after, I get hard every time I think about that night and would love to experience something similar again.