Why does my boyfriend do this?

Every time we are watching a movie he puts his hand in between my legs and starts rubbing and then sometimes ill lay against him and he will try to put his hand down my pants just a little bit, and other times he just makes out with me, I've never seen this side before. whats up with that?

He's letting you know that he wants to move things up a bit.

It seems to me like your boyfriend wants to take things to the next level. If you don't want to go any further you should tell your boyfriend that.

He wants to move things to the next level with you if you dont feel fully comfortable with that tell him next time he does it. In a calm voice take his hand and move it away. Say please stop I am not comfortable with you doing that yet. If he understands, stops, and waits till your ready than hes a good guy.