However, you could use the phrase "first-time" (hyphenated) as a homophone for "first time" in the context of talking to someone for the first time.
For example:
* "It was my first time talking to them."
* "This is my first-time talking to them."
While "first-time" is not strictly a homophone of "first time," it is a similar-sounding phrase and can be used in a similar way.