It might sound gross. It’s not really. You get used to it. This can happen from one of two conditions. Your cat is having dental problems, or the cat really loves you.
They drool when they are happy.
Not all cats drool. At least, that has been my experience. Millie drools. Our smallest cat Daisy Mae drools. Sometimes Molly drools. Sometimes it gets on you. Actually, now that I’m thinking about it Stanley drools too…