I go to my safari and it says I have viruses from adult websites, I'm guilty of that yes. But it then shows its checking my android in one tab and another says my iPhone has a virus. Is this true? Or is it a s scam!?
Clearly a SCAM.
Safari has nothing to do with that, that is a website with the info and it was opened by the adult website.
Viruses usually do not announce themselves to you.
Try opening new tab and search for Google. No virus there!
Just delete the website in question, you do not have a virus.