Diane & I had discussed threesomes several times during sex. Ever since a collegue of hers had complimented her perfect breasts & suggested that she did not need a bra, successfully persuading Diane to remove it before slipping on her company blouse.

Diane admitted geting turned on by this girls attention & that she found her attractive,even wishing that the girl had made a move on her. I had to admit that the whole scene sounded good to me & that I would happily watch or participate.
But that is as far as it went, until one Saturday night when we were out with a friend of Dianes & her boyfriend (who I later discovered was an ex of Dianes). As the drink flowed, the other couple invited us back to their flat for the night & we happily accepted.

Unfortunately within 10 minutes of reaching the flat, Jane was so drunk that she passed out, so with Dianes help, John put her to bed.

After a few minutes I felt restless & went to see why they were so long.
I opened the bedroom door to see Sue laying naked & unconscious on the bed, with Diane licking her left nipple & a hand between Sues open legs, being encouraged by John as he stood watching.

As Diane turned to look at me I could see that her blouse was open & her bra lifted up over to tits. She claimed that Sue was to blame, but it was clear that Sue was not capable.

But I still found myself becoming incredibly horny & as Diane knelt next to her naked friend I walked towards, her opened my trousers & pushed my cock towards her face. John watched awkwardly as Diane sucked me, until I beckoned him forward & gestured for him to unleash his cock.
Diane needed no encouragement as I grabbed her hair, pulled her mouth away from me & guided it ti John's cock, soon she was eagerly switching back and forth between our cocks.

As my orgasm approached I told her to strip & lay on the bed next to Sue,then I buried my cock in her hot tight pussy as john offered his cock to her mouth.
As I pounded away Diane began to cum & as she did she let Johns cock slip from her mouth. As it slipped out it bounced up, hitting my face & when Diane pleaded with me to suck it, it seemed so natural to accept Johns cock between my lips. With Dianes encouragement John pushed his cock in & out of my mouth & was soon gushing his spunk in to me as I struggled to swallow it all.

I pulled my cock out of Dianes pussy & insisted that between them they should suck me dry. I don't know if it was Johns first time, but he certainly knew how to give a blow job without spilling a drop. Later that night Diane let me fuck her arse for the first time as she sucked Johns dick.

Two weeks later I had Diane sat on my face as her collegue from work sat on my cock & they kissed & sucked each other tits.