When it comes to expressing physical intimacy, a "deep kiss" can be a powerful and passionate gesture between two individuals. However, if you want to add more variation to your vocabulary, you can opt for some synonyms that can help you describe this moment of intimacy in different ways. For instance, some alternatives to "deep kiss" include 'French kiss", "tongue kiss", or "lip lock". Other original options include "soul kiss", "whiskey kiss", "erotic kiss", or "lovers' kiss". Regardless of which term you choose to use, the important thing is to enjoy the moment of intimacy with your partner and savor the experience.