Yes, nobody in my niche is doing this, which is a bad sign, I know.

The point was this, I already have a successful website in the sex adult niche and I thought, if I expand into porn I will use my current "authority" to help my new porn-related pages rank higher.

If I create a new domain, I am pretty much starting from zero, with no advantages. I don't see much point in that.

Hello,

I'm thinking to extend my website into porn. At the moment there is no pornography on it, although we do talk about sex related topics and products (from dating to tutorials, to toys etc.)

Would it be dangerous to keep the porn section on the same domain as the rest? Would this negatively affect my non-porn content as Googlebot would "flag" my website as being pornographic (although only a few pages would be)?

Or simply Googlebot would leave the current non-porn pages ranking as they are now, just fine, and plus it would rank the porn pages if they "deserve" to?

I hope my question is clear.

I don't want to create a subdomain.