What does it mean when our hips bump into each other while walking?

There have been two occasions when I had liked two different guys, and had thought they were attracted to me. While walking with them, I our hips kind of bumped into each other. In both occasions, I realized it after a while doing it. With one guy, I had almost thought as if we were walking as one and he seemed to almost lean into me (not that I had mind), and follow my exact steps when or if I turned.

Is there anything to that or am I just overanalyzing?
What does it mean when our hips bump into each other while walking?
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