I really enjoy being fluid bonded with somebody but I can only do that when I really really trust someone. They need to be tested and any of their other partners tested and then if the circle keeps going out condoms and/or testing. I also don't have casual sex in hopes of limiting my chances of STIs.
I have some really close family members with lifelong STIs. So while I love sex and the stickiness, I want to minimize my chances of contracting something that will affect me forever.
I've tried female condoms when I was younger and I was worried the whole time it would slide in.
I've also used condoms plenty of times and had them get "lost" in me. I am constantly reaching down to check that it's still on. I am so not into digging around in my goods to find a rubber and then testing and morning after pills or whatever.