If you look through my profile you'll see my gf had a bull for a while. We all enjoyed it, but it stopped. Anyway, her bull enjoyed her bare for a while while I wore protection. It wasn't the humiliation aspect of it that either of us were interested in. He said there was scientific evidence that women became more sexually attracted/attached to men that ejaculated in them vs. even a significant other that wasn't. I can't find anything validating this. Does anyone have any input. I've looked into fluid bonding, but that just looks like an emotional response or belief. Does anyone have any insight? Is it instinctual? Is it bullshit? Is it biological? Is it emotional?