You seem to be in the predicament I'm in, but just the opposite. My mother and father divorced when I was young. I grew up with my hell raising mother (harsh, I know, but you will see...)
She don't trust me, started when I was a teen. She seems to think that all teens are evil. She never reads any of my stuff, because, well, she is NEVER HOME. But I obey her. All I do on the computer is school, I don't talk to my friends on my phone, only on my cell phone. But it was like that once. Anyway, she, literally, is neverhome. I have raised myself. Most would think im on drugs because i had no parents, btu when I was young she taught me don't do drugs, have premarital sex, or drink. And it's stuck with me. But other then that, I raised myself. Now, at least you are allowed to have friends. My mother, if she don't choose my friends, then they aren't my friends acording to her.
All the friends she forces me to be with, aren't even my friends, they are "People who go to church." Well guess what, these are those teens hwo think they are better then everyone else and are little snobs. Anyway, any friend I pick is never good enough. So, I don't get to have alot of friends, and yes, I lie, to hang out with them. She wants to meet them, but she never has, won't come home to.
I can't go out without her tagging along. I can't go to the mall because, "Do you know how many teenagers get preganant by going to the mall to hangout?"
Well MOTHER, I am a guy, and I won't get pregnant, and im not gonna have sex!
I can't do anything outside of the house without her tagging along, UNLESS there is a adult she knows thats there too. So, half the time I leave and say its something to do with sports that I play, when it's not. Yes, I know its horrible to lie, but she is never home, won't let me grow up, and if I didn't have friends I would literally go mad.
However, since my mother is not my mother figure, my pastor's wife is, as well as my pastor my father figure. I have known them all my life, before they became pastors. They are my moms best friend, and so I have a wierd relationship with them. I tell them everything, literally. And I'm sure they tell my mom stuff, but the stuff I ask them nto to tell, they don't, because, it's private, and they know they are basically my parents. I only see them every day.
Here is how I would deal with the situation: Sit them down at the dinner table, and have a serious talk. Don't let them interrupt you. And pray to God that they will open their ears and hear what you have to say.