My son did about the same thing, after his 16th birthday he came to me and opened up how he is masturbating and would really want to try a vagina toy. I had no issue getting him one, he picked one that he liked the most, and I got myself a vibrator too in the process. Few months later he told me, how good it was that he got the vagina, seeing how his friends have sex with people they don't care about.