My Ex

My ex confessed to me that she thought the idea of two guys having ** was seroiusly hot. She kept talking to me about that scenario and, although I was 'straight', I would go with a guy if it got her off.
Before I met her she used to have a '**', well it turns out that he was bi. So she contacted him.
A few days later when we were fooling around, she started talking about how she'd like to see me and her ** together, so I said ok, let's do it. She was texting him to come round within seconds. 7 mins later I was opening the front door to my girlfriends (ex!!) **.
He came in, kissed me and went straight through to the bedroom!! I followed and my girlfriend was sooo excited and I sooo wanted to make her happy that without being asked I went down on her 'friend' and started sucking and linking her Booty calls manhood.
The girlfriend, I could sense was getting very wet, as the look on her face was very sensual. I was scared and nervous and totally loving what I was doing to this guy who used to sleep with my girlfriend.
We didn't make out like she wanted to, mainly cos I sucked him to completion lol. And there wasn't any more encounters with her ** (unfortunately). But she did start to buy me ** and she did enjoy using her double ended toy on me...on more than one occasion. So, I reckon had we still been together I would certainly have ended up as her sissy cuckold