yeah, normal. I know its unproven but pheromones, that's what the body odour from the apocrine sweat glands is about. Its a sign that person has a good genetic match up for you.
it depends.. if you mean bo thats a little weird ..but I myself love the smell of sweat mixed with body spray on a man specifically my own man.. but not like dirty smell .. if he smells dirty it;s shower time
Yes, yes, I think it's normal. My girlfriend also studys at the same university. In summer I like it to smell her hot skin on her naked arms, legs and neck mixed with her perfume.
its a primal instinct. the pheramones which attract you shows that the person is a good mate for you. i believe many animals finds their mate's this way.
but not like dirty smell .. if he smells dirty it;s shower time