If there were a standard definition to fluid bonding in Polyamory, I'd try to frame it as the ongoing practice of having unprotected sex with an established partner. A couple of points on this:
1. You'll notice that I've placed emphasis on an established partner. Fluid bonding in most Polyamorous circles is a term used to describe an intimate, long-term interest in someone.
2. You'll also notice that I've avoided saying "intercourse" or PIV (Penis In Vagina). Fluids, such as they are, can be exchanged in many ways. My wife, for instance, is a heavy squirter: unless you're wearing goggles, sporting a snorkel, and are donning a latex body suit, you're pretty much exchanging fluids with the girl, even if you're not penetrating her. Unprotected sex could mean many things to many people. It's an assumption to think we're just talking about intercourse here.
3. Unprotected sex is precisely that: no barriers. Still, that doesn't mean barriers may not be used for extra precautions during, say, heightened concerns over risk factors, HSV2 outbreaks, specific forms of contraceptives, or elevated pregnancy risks. It's not an absolute designation to people that dismisses all barriers at all times.
In Polyamorous circles, the "fluid bonding" connotation carries a lot of weight.
For starters, it recognizes someone as a serious, long-term, intimate partner. It's a big fat flag that says this person is super-special in your life.
Next, it places a lot of trust in someone. They're being trusted to follow mutually agreed-upon controls around their sexual activities. Those rules in place to protect the dyad directly impacted by the breach of those agreements, and, everyone interconnected to the dyad. Polyamory being what it is, a single breach of conduct by one person could expose a network of six, eight, or ten other individuals. That's a lot of trust. That's why fluid bonding discussions will quickly expand beyond the dyad to everyone in an extended Polyamorous network.
It represents a degree of risk. There's always an exposure risk to Sexually Transmitted Infections (STI's) that requires monitoring and control. If anyone in the bonded network has a change in status - they're seeing new people, are trying new activities, have a condom failure, what have you - this could potentially introduce elevated risk factors.
Further, fluid bonding has an emotional component. When my wife and I started discussing the possibility of my fluid bonding with my girlfriend, Camille, Gina had a difficult emotional response. Why? Well, it's special. Fluid bonding is a privilege of committed intimacy. If I were to fluid bond with my girlfriend, that would detract from the perception of special my wife has over our relationship. It's an extra level of vulnerability experienced by my wife and a perceived risk to her. In a way, I think she'd say that I'm taking something away from her and sharing it with my girlfriend. That's a tough emotional road to negotiate. It took around three months of discussion among the three of us, and, with Camille's other partner, to work out the kinks.
Fluid bonding is hopefully a time-tested, reasoned decision - a conclusion reached after a reasonable amount of time. NRE can cloud the mind. People can jump irrationally into fluid bonding without considering the ramifications.
Finally - and on this point I may catch a lot of flack - fluid bonding represents an agreement ... not just between the dyad ... but with everyone in the network. Fluid bonding affects everyone. In Polyamory, it takes a unilateral decision usually made by just two people and turns it into an exercise in group consensus. This can be a significant point of contention. I've been in very difficult conversations where a metamour was pleading for fluid bonding status with someone that others in the network didn't trust; I've also been in conversations where a metamour had an STI scare within our network. None of these things were fun and pleasant.
It's my opinion that fluid bonding is a symbol of privilege in Polyamory. For better or worse, it reflects your level of intimacy and your "voting rights" in a Polyamorous network. Within my circles, fluid bonding status isn't conveyed all-willy-nilly-like. Instead, it's a negotiation involving all of my network. This may be practiced quite differently elsewhere - other Polyamorous types may even bristle at the idea of others within a network having such control over their personal sexual decisions. That's a distinction in my network but it's not altogether unheard of. Polyfidelity, for example, reflects a closed group of Polyamorous people who've sealed off their network to create a STI firewall. I'd suggest we're not Polyfidelitious but tend to work through fluid bonding decisions over a course of months. I suspect this is slower than most.
Fluid bonding conversations would (hopefully) look a lot like pre-negotiated sex conversations:
- Who else are you fluid bonded with?
- What is your current STI status?
- Method of contraception?
- When were you last tested? How often do you get tested? Can I see the results?
- What were the results of your last physical exam? Anything abnormal?
- What are your risk factors and how do you control them?
- All of the above ... as it applies to your fluid-bonded partners?
- Do you agree with what my ideas are about sex?
- Do you agree with what my ideas are about safe sex?
- What types of sex constitutes the use of barriers?
- How will we talk to each other about STI's and other issues? And how frequently?
- When will you disclose problems with barrier usage? Or having sex with somebody new?
- What about your partners? How frequently and readily do they disclose this stuff with you?
- Are you willing to have conversations about this with my other partners? Their partners?
- How could we back out of being fluid bonded? What would the circumstances look like if that was no longer viable?
- Can I answer any questions your partners may have about me?
Tricky, huh? Yet absolutely necessary.
You know, it's funny.
When I announced that I was Polyamorous to my parents, their most immediate concern was how I controlled for STI's. Because, as you know, the Heathen world I live in is crawling with them.
Well, my first response was that I pick good people: people I can trust and who're going to be open, honest, and straight-forward with me on everything having to do with sex.