Help! How can I buy a toy?

I'm only 13, yes young and I've lost my virginity. I only regret it because of my age but not the person I did it with. I live with my grandma and I have saw so many toys that I would like. I'm so close to asking my mom if I could get one. I believe it'll help me not have sex with my boyfriend for the risk because he can't get condoms. He hasn't been feeling horny which is good but I can't help but my hormones take over and it happens. Should I simply straight up ask my mom or ask for a gift card and get something off amazon and say it's something else... Tips on how to hide toys too?