Some time ago I wrote about my lovely wife Sue getting me a special treat for my 40th birthday. A suprise good shagging from a youngman who drinks in our local. Well since that time we have talked about what I should get for her 40th birthday treat. Sue is a sexy 5'4'' 38 C boobs slim waist and a nice arse. She likes most things sex wise and has kissed and fondled her friends but no more and we have spoken about her having sex with another man which got her all wet but no agreement. With her birthday rapidly approaching we went out for our usual Saturday night down the pub with our group of friends. They do not know about me getting it up the arse for my birthday, thank goodness, but the chat in the pub from Sue's mates was all about what I was going to get her for her birthday. This made my mind race as to what I could get her. When we got home and went straight to bed I asked her if she had any idea what I could get for her. Would she like to have sex with another guy - no answer not even no ! Wow I thought. Would she like to have sex with another woman - no answer not even no again. Wow this gets better. Hot sex followed and after we had finished without any prompting she said 'Whatever you think I would like Steve.' The following morning Sue got up and went to the gym as usual. I rang Sue's friend Carol who I get on with really well and I played rugby with her husband Jim and told her what she said. I did this because Carol is the friend she kisses and strokes the most. They were at Uni together and this is where it all started. I have heard that Carol and Jim have an adventurous side to their sex lives. Carol asked why I had rang her. I said would you and Jim like to fuck Sue for her birthday treat for me please. Without taking a breath Carol said 'Yes when.' Sue's birthday was in 10 days time so we arranged for them to come over for dinner. 'Jim has always fancied Sue I'm sure he would love the chance to fuck Sue.'