Sex talk?

I'm 15 and my mom and I have had the sex talk before but I don't know how to ask her to get a sex toy..... She doesn't even know I masterbate but I'm pretty sure she's figured out by now with those long showers and locked doors. And I sucks because my family is very religious and My parents would be very disappointed if they found out I was having sex. They want me to get married first!( which I'm not having sex) Should I ask or should I just keep doing my thing? Would you let your daughter get a vibrator or a dildo?