Most Helpful Guy
I don't think he really is into your if he can't get that you guys have only been together for a minute and he's asking for nudes. I think he's more interested in the body than anything.
And no you're not being a prude. It's good to see a girl that doesn't say okay, find something sexy, and take pictures to send first time asked. Really nice to see a girl with some class.
Most Helpful Girl
first of all he's testing you, and it doesn't sound like he's too serious about you. Second of all what friend says that? do not send him nuds if you're serious about him/wanting something more then a casual relationship