Should I let my boyfriend touch me?

I'm 15 and he's 16 we've been on and on and off since last year. We recently just got back together today and he came to my house with some guys and he began feeling on my butt, boobs, and tried to touch down there I dont really know if I like it or not? I'm scared to tell him to quit because I dont want him to get mad what should I do
Should I let my boyfriend touch me?
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