What does it mean when a guy grinds on you?

Anonymous
So at a school dance a guy who I really like started grinding on me. I was not the only girl he grinded on, but the other girls he grinded on did not go to our school. Every time we were grinding and we got pushed by a mob he always made sure I was OK. He also made conversasion and was flirting. And at school he always smiles at me and waves in the halls and we talk.
What does it mean when a guy grinds on you?
3 Opinion