Does he like me? And does his sister like me?

I was at this party and then one of the girls who I am not sure likes me or not brother was there, and I talked to him basically the whole party, then a group of us including the brother went to somebody house where we decided to watch a movie on netflix. So me and the brother have already seen the movie before, but not in a while so we still are scared but still know what happens. So I am sitting close to him and we are laughing because we know it already and he was trying to scared me and I him. Then I was clutching a pillow and my hand slides off it, and I didn't move it up cause I was like, hm I wonder what he'd do. So our hands are touching and then he wraps one of his fingers around mine and just stays there, then we just sort of hold hands and watch the movie, while making jokes and acting causal. Then the girls mom who is the owner of the house comes downstairs and he lets go of my hand, then when she leaves he puts his hand near mine, so I grab it this time and we hold hands until the movie crashes and stops. Then we play catch for a bit until I leave. But the real catch is, his sister is super protective of him, and in the first party was literally saying to me that "her (brother name here)y needs to find a girl I approve of" and I was like oh boy. Cause I don't know if she likes me or doesn't, she is very hard to read. He also is an innocent boy kind of.