Why would he ask me to feel his arms muscles?

liliana_denise_gosto
a guy from work which I see like 2 times a week asked me to feel is arms muscles, it was kind of random is he flirting with me or just being arrogant.

we kind of talk to each other in a playful way he likes my sense of humor, but that's about it we are not even close friends

Why would he ask me to feel his arms muscles?
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