What do you mean it's gross? Isn't that just an opinion, it's not like it's an objective fact. Like some people find homosexuality gross but that doesn't mean you should be able so stop being doing it if they want. If more than two people want to be together it's their choice.

Alright, I'm just saying it's gross and we're all waiting for Utah to grow up and make this illegal.
I think you have lots of wives and you're arguing because if that.

Dude I have one girlfriend and she has told me it's okay if I want another girlfriend alongside her, which I rejected the idea of. I'm just saying that there is nothing inherently unethical about having multiple partners if they all agree and consent to it. It's none of your business what people want to do if it doesn't negatively affect unwilling parties.