How can i get my parents to let me stay out later?

i am almost 17 and i have a car and i recently started hanging out with a group of people who are very nice, none smoke or do anything illegal ever. all they do is sit around in one kids basement and play pool and videogames and listen to music and chill. the mom is even home too. we go there on friday nights and my mom only lets me stay until 8 or sometimes earlier and she says she doesnt want me there at all because we do not plan every second of what we are going to do. most of them stay til 10 or later or overnight. what can i say to my mom or do to enable myself to go hang out with them? she always says its not me she doesnt trust, its them. and she's never even seen them or met them except one which is my boyfriend who she straight up said "i like him a lot. good choice" please help. urgent.