Why do some men put their hand on my back or hug me so tight that my boobs are just crushed against their chests? Do these actions have motive?

Should I be cautious of these actions or do they just speak of affection? I don’t mind the tight hugs but my back is very sensitive and it’s kind of an erogenous zone for me

Why do some men put their hand on my back or hug me so tight that my boobs are just crushed against their chests? Do these actions have motive?
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