It honestly doesn't matter.
So you find a drawn character sexy.
While yeah, as others have said, legally marrying a fictional character is really, really, really depressing to think about but finding non real characters sexy is a non-issue.
If you cross the line from 'Find sexy/thinks dirty thoughts' over to 'I must marry them!' your treading in dangerous water. Just as if you had the same thoughts of a real actor or actress.
So you find a drawn character sexy.
While yeah, as others have said, legally marrying a fictional character is really, really, really depressing to think about but finding non real characters sexy is a non-issue.
If you cross the line from 'Find sexy/thinks dirty thoughts' over to 'I must marry them!' your treading in dangerous water. Just as if you had the same thoughts of a real actor or actress.