My first gun was a 6" 28-2 Highway Patrolman. It was my Dad's gun and he gave it to me when I was 14. After I recovered from the surprise I asked if I could have his 3" 36-1 too. He said sure. So, I acquired my second gun within 15 minutes of my first. They were the first of many, many, many guns, and I still have both of them.
The first gun I bought with my own money was a $40 Enfield #4 Mk1. My first handgun I bought with my own money was a brand new 625-6 .45 Colt Mountain Gun.