What does all of this mean?

I started work wednesday officially and met my team leader who is 16 years older than me.

During my first shift, he makes comments about me being pretty e.g. "Just met a woman but she was nowhere near as pretty as you" and later when he found out I speak German he asks me, "How do I say hot sexy glasses wearing mama in german?" (mind - I wear glasses). And then he makes other little comments and keeps saying my name and staring at me. Thursday came and he told me I sound "so sexy" when i'm "firm" and said I said something real sexy. And carried on with the comments and the staring. Friday came and I did well at work so he hugged me and told me I was a legend and then later comes running up behind me, grabs me both hands on my hips and starts driving me around the street and i'm thinking what?!?! and then later he hugged me AGAIN...And throughout these days he was constantly asking me about boyfriends. I thought he was just having fun but spoke to a female colleague who has been on his team before and she said that he has never been like that with any woman before at work and that he has a kid and partner. I'm just thinking what on earth do I do and what all of this means. I've spoken to friends and they say he is flirting with me and he really likes me!!

What does it all mean and what should I do?