I'd always wanted to be in a band, but never had the confidence to go out and learn to play let alone get up on stage. And bass wasn't really my first choice, it wasn't even my second choice really falling as it did behind singing and keyboards. By the time I was in my mid-twenties I was thoroughly convinced I'd never do anything musical and had resigned myself to it. That changed when (at the age of 30) and after a conversation about music my then house-mate leant me this no-name guitar he had lying around, so I picked it up and messed around with it for a few days before deciding that it really wasn't for me, but that a bass probably would be. I think I'd probably been subconsciously influenced by more bassists than guitarists anyway that it felt like the right path to take.
At that point though, I still had no intention of being in a band as I was still convinced I was too old, but that I could at least learn to play a few songs at home. That changed dramatically even before I'd gotten around to buying my first bass; a friend of mine came bounding up to me after a gig at Christmas 2006 asking me to form a band with her - caught up in the moment I agreed. No, I wasn't drunk (except perhaps on adrenalin).
Now of course, bass is my first choice. I still have the occassional urge to learn keyboards or to sing, but I love bass too much to swap.
My first bass was a Yamaha BB614L
My current bass is a Cort Artisan B4LH
And my dream bass is a Shuker