Adding an NSFW page to a majority SFW site?

[cbrts]

I would like to take a SFW personal blog website and add a relevant NSFW page to it. In doing so I'm worried about a few things with Google specifically.

1) How do I flag this page as NSFW to Google? Is there a standard way across engines?
2) Will this hurt the discoverability/ranking of my other pages?
3) Is there a possibility for Google to think my whole site is adult? The NSFW would infect the other stuff?
4) How do I make sure NSFW images don't end up marked as SFW in Google Image search?

Background/Use case:
I have a personal blog where until now everything has been SFW. I have the desire to do _some_ NSFW-centric content that is not the majority of what the site is, mostly communicating how I optimize my #*$! habits with data scraping and algorithms.

[tangor]

One bad apple can spoil the whole barrel. Some old adages still apply.

If you make the page undiscoverable by G (unlikely, they will find it through links) you might get along for some time, but eventually this content will be found ... and attached to your site. G gives lip service to having a care (they don't in reality), but will report the content it has found, AS IT IS FOUND.

If you know this is NSFW then a very strong reason to present the material must be determined and if it will ENHANCE your site, or make it drop like a stone.

[SEO Learner 04]

It is no need to worry about as you can use this meta tag for that page: <meta name="rating" content="adult">. This indicates the Google bot to show this page in Safesearch.

[cbrts]

Perhaps I will have to experiment with it. I have no problem tagging my stuff, or even separating it into another website. I just don't want to be unfound/hidden in rankings.

I experimented with the rankings of another site (unnamed due to forum rules) that combined very technical pages and separately some very explicitly NSFW images and they still show up in Google quite highly for their SFW stuff. NSFW stuff requires a "pron seeking" search to make it come up

Thank you for the tips, I'll make sure my NSFW, if any, _enhances_ the site.