I have a problem?

My cousin is coming to stay with my family and I and so my mom said I have to "include him in my social events". She's harshly making me but the problem is he's a total dork. Pocket protector-yeah, tucked in shirt-totally, khaki pants that go higher than normal-you got it. See what I mean? And it doesn't stop there, he even acts like a dork. I mean, if we wanted to go to the movies he'd want to go to the bookstore. I just can't cope with him for a whole week. It'd ruin me. What do I do?