I'm 27, but have been breeding since I was 19
My first experiences were in college while experimenting and pushing limits with my then-girlfriend. We were both pretty freaky, and we often had threesomes and group sex parties with close friends and total strangers alike. Most of the girls at the parties (including my girlfriend) were natural cum junkies, and loved the feeling of a guy cumming inside them in particular.
I was having a threesome with my girlfriend and of the of girls we had met at a party, and I came really hard inside my girlfriend. There was a lot more cum than usual, since I had been saving it up for her, and she had felt the difference. But instead of keeping it all to herself, she proceeded to push some of the cum up out of herself, take a big glob of it on her finger, spread our friend's pussy really wide open, and let the cum fall inside.
She did this three more times and it was amazingly hot. Long story short, they both got pregnant (which was extremely unlikely and totally shocking, but happened nonetheless). Both of them got abortions, but since then, I've helped three of my friends get pregnant by organizing and taking part in breeding parties for them, and I've also met up with a few couples - one couple who was organizing a breeding party, and two other couples who simply wanted their k** to come from someone else.
Breeding is an other-worldly experience, and is the ultimate act of surrendering yourself to a lover. Some of the most amazing sluts in the world are girls who love being bred - they allow themselves to so fully let go of their bodies and give themselves to the men they're with, some of whom can be total strangers, that they are willing to take a man's seed and have their c***d. It's the truest expression of being a slut and/or a slave.