How can I make things less awkward with my sister and mom?

So recently I confessed to my mom that I was attracted to girls (I'm a girl...I like both) and she told me that it was a phase, etc. And I'll admit that sometimes I think she's right about the phase part (not that gay is a phase, it's just that for ME, bisexuality might me. I'm still figuring out who I am)...but anyway, every since then she never really wants to let me hang out with my (girl)friends, always asking me if they're gay, etc. Also, around that time I told my sister how I was feeling and she said that she used to think she was bi, too, but she got over it. So months later, my sister asked me if I still thought I had feelings for girls and I lied to her (apparently my "phase" isn't over yet) and said no. But the other day, my friend sent me a picture of her hair because she had just died it and my sister saw it and she said "Why is she sending you pictures of herself?? Is she gay?" I didn't really know what to say, so I just had to explain to her that my friend just wanted me to see her new hair. I was semi angry, but I just let it go. But then yesterday, we (me and my sister) went to see The Hangover Pt. 2. And, if you've seen it, then you'll know that it's pretty graphic. During the ending credits, they were showing these pictures and a lot of them had topless girls in it. And, I would turn my head (because I don't look at stuff like that. Well, at least not in front of people) and then I would turn back around to see if it was over (because I wanted to see the rest of the funny pictures) and she was like "What are you doing?! Turn your head! Don't look at that!" and then I was like "I'm wasn't trying to!" but she didn't believe me and she kept looking at me funny the whole night. I'm just kind of sick of them at this point. I just want things to go back to normal....makes me wish I had never confided in either of them.