Is asking her to be more physical bad or over stepping?

I'm in my first relationship with my girlfriend for 2 years now and she's not much of a physical type she will tolerate cheek kisses and hand holds but not for long and other physical things hugs and stuff but like I said this is my first relationship and I didn't know I would want physical contact so much would asking her to be more physical be to demanding or something like push a boundary or something?
Is asking her to be more physical bad or over stepping?
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