It has been quite a couple of years since this happened, but I recall it quite vividly since we all had some great fun.

Late on a Friday afternoon I was browsing the net with my pants down, raging hard on pulsing away while I browsed the Cpl4Men profiles on AMM. I came across a straight cpl profile, and they winked me and asked for me to message them back.
At the time I wasn't looking for a straight couple, but I entertained the message, otherwise I might have wound up with jerking off again for another night.

Turns out I was messaging the Mrs, and she and the Mr were keen to try out Bi for the first time between themselves and another guy.
Being their suburb was listed as 30minutes away, I was more than keen.

We had a bit of a chat, and it was set, be there by 7 for some bi fun with the couple. So I headed to the shower, shaved down and made myself presentable.

Arrived at their house, and the Mrs answered the door. Mr was off dropping the kids off with the babysitter, and would be back shortly. Mrs was keen, and we started off with the kissing and petting, until she started fishing around for my cock.

Just as she started to put my cock in her mouth, Mr came home and walked in to see Mrs with her lips wrapped around my extremely hard cock head.
Mr watched on for a little, and then pulled out his cock which was getting hard from the Mrs' show.

We adjourned to the spare bedroom, looks like it was setup for some fun since the air mattress was laid out. Mrs starts sucking on both our cocks, until she asks for one of us to help her out with one of these cocks.
Mr's cock is thick and long, so I dropped to my knees and started licking her husbands cock up and down while teasing it into her mouth.

Mrs quite enjoyed the show, more so when hubby and I swapped over and he was sucking on my rock hard cock. It took great amounts of restraint to prevent blowing my load, but god damned that was just the start of my first experience.

So there Mr was sucking on my cock and Mrs was watching on playing with herself and getting wetter. She demands to be fucked now, and I have been offered the first go with her.

I lay down on the inflatable mattress and she climbs on top and sinks down to the base of my cock. She starts this grinding motion that lets the tip of cock flick back and forward against the extremities of her pussy.

Mr is behind her and begins cupping my balls and playing with her ass, when her gets this look in his eyes. He crouches down and I lose sight of him for a bit... but I feel a tongue licking and playing with my heavy full balls.
THIS IS WHY BI PLAY IS FUN!

I start lifting her body up to coincide with her grinding, and after a few minutes I am getting a bit close... so I lift her completely off my cock and bring her pussy to my face and start eating her out and sucking on her clit.
She begins gushing and I am lapping up her juices now.

Hubby straddles my stomach and I almost thought he was going to sit on my cock, but I feel his cock begin sliding into her pussy. When I looked down he was balls deep in his Mrs, and a great big pair of balls were just in reach of my lips.

The three of us fucked and switched positions several times over what felt like hours, and I was still holding back a huge load of cum.

Mrs took a small break to give her overworked pussy a break, but requested her Mr try taking my cock inside his ass.
Mr gets himself into the doggystyle position, Mrs starts lubing his up, and I put on a fresh rubber. Once i'm covered and he is lubed up, Mrs guides my rock hard cock into her hubby and it begins a slow journey of reaching the base of my cock.
Mrs is beside herself with pleasure now, furiously playing with her pussy with one hand, the other is behind herself and fingering her asshole.

Mr feels like a break from this new feeling, but he wants me to replicate what I have just been doing with his wife. How could I say no.

I slide my cock from Mr's ass, slide off the condom. Mrs is extremely keen and wants it now. She pushes me down and mounts me first with her pussy, then with what I guess is practiced ease, she lifts up and lines her asshole up for my cock, and begins sitting down on my hard cock.

She leans back with my cock half out of her ass, it looks great. Her tight asshole hugging my cock, half in, half out, and her pussy dripping wet. Hubby straddles my chest now with his cock facing the Mrs, he angles his cock into her pussy and begins sliding deep in her pussy.
This position was not easy to keep up, but we changed over so she would be dp'd, but I would fuck her asshole from behind.

She straddles hubby's cock and begins a slow fucking, I slide my cock into her ass and end up balls deep in her. And start alternating in and out of her ass complimenting Mr's attentions.

Mrs is moaning loud enough to possibly be heard by all the neighbours, but we keep going until she says she wants cum in her face NOW.

Hubby and I pull out from her orifices and line her face up for a double shot... and with a few final strokes we start covering her face in huge loads of cum.