I tell this story all the time.
I was hanging out with this dude that I did drugs with, and I told him about a chick I hooked up with the night before. I told him that she preferred butt stuff, and he told me that he would never do anal with a chick. I asked why, and he said “Having anal sex with a chick is exactly the same as having anal sex with a dude. Thus anal sex is always gay regardless of the partner makeup.” So, he said it a lot dumber than I typed it and with a southern accent. But, you get the idea.
This is the same guy that said he’d never take ecstasy because “it makes you act gay”. That dude sure was worried about being gay. Hehehe