I'm not as poetic or precise in defining this important phenomenon, but I can say this... Without someone releasing his load and/or someone not receiving a load, to me is simply is not sex. I top, I bottom, and both are incredible to cum inside. I've bred and been bred by "straight" men, and even they can't really articulate why they enjoy it so much. Especially now, post Covid epidemic, most of us have had particularly solitary lives. It has been a no-touch and no-contact eternity, and we need that, regardless of sexual orientation. The energy of men, the understanding of what it is to be a man, a "knowingness" that cannot be articulated between each other as to our needs and desires, is our most masculine quality. Sex with women is so much different in dynamics and the energy exchanged. In my humble opinion, men who have a broader appreciation of other men are more balanced and less critical and self-resistant. I simply mean, we are all connected and orientation doesn't matter so much. I also see it in the concept of bromance and bro-bonding. We crave each other and the reason doesn't matter. For me, to have that in a sexual way between two men, is incredible. No disrespect for anyone's sexual interests, be they straight, bi, gay, trans... Barebacking with men feeds my soul, and hopefully all partners I've been with, get fed as well.