Well the secret to Cthulhu's mouth is that it does look like a pussy, like the most beautiful pussy you have ever seen, that's why most people go "OMG I CAN SEE FOREVER" and then have a heart attack, cos they jizz so hard that an unused part of their brain gets accessed and they see in all dimensions. And imagine if that pussy is so beautiful in 3D, how it would look in 4D or more! It's a chain reaction. A gay guy who lived to tell the tale told me this. He almost turned straight, but then he couldn't find a pussy as beautiful as Cthulhu's mouth and gave it up. It's tru.
Of course, if a gay guy said it looked like the most beautiful pussy he had ever seen, it may just look like a man's asshole.