That doesnt sound work appropriate comments.
I would say nothing and not get into a work relationship. Especially with someone who has power/influence above your position.
If hes just playing around i dont think its an issue, but there is a fine line to sexual harassment that you dont need surrounding your reputation at this job.

At my old job a manager was sleeping with a subordinate and i was interviewed because we texted and in the investigation my name came up on his work phone records. We were only texting about pre schools for our kids. Innocent stuff. My having my reputation questioned and having to show the messages to hr is not a fun feeling.

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