Hey bud, reading this I felt like it was something I had written. Can so relate to it. My ex (we were together for 12 years) was poz, and I'm neg. He's the first person who made me realize, and take, the reality that I was meant to be a bottom and not the top I had previously been. There was no turning back since then. We knew the risks up front but made the agreement that as long as he pulled out before cumming, there was a likelihood it would be "okay", i.e. safer. I could never stand rubbers as a top - something just made me lose hardness. Anyway, we fucked regularly, often and everywhere - raw- but somehow I was always unfulfilled or disappointed in a way, that he couldn't breed me. While I didn't want to convert to poz, I so wanted to feel him breeding me, and to be able to look into his eyes as he was doing so. To me it's the real way that natural manimal mating is meant to be. One or two times over the years he wasn't able to hold back and realized he was cumming inside me and quickly pulled out. Because we never were really able to finish it with total completion I always felt something empty, but understood the deal, and the consequences. I always thought "If I'm going to get 'it' from anyone, I'd rather it be from him."
Anyway, I've been fucked often (never enough) and bred by neg guys (how are you ever sure?), so far lucky, but still love that intimacy or reality or lust, whatever, of being bred. Just thought I'd share since I thought you might relate. ;-)