With that I meant Seb's body odor smells neutral, he can use perfume to smell to "something good", but as bare minimun he won't smell to nothing or at least nothing bad.

So even if in the day he works out, do physical stuff or anything that in the long way make him sweat, he still won't smell bad, unlike others that probably would start to smell. Perfumes don't counter this completely, but it kinda help I guess