Used to have a younger godsister during when i was 17-18. We
were quite close lor, but my gf at that time was a bit jealous.
Think she confided in her mum and her mum said, “Between a man and
a woman, either the 2 of you fall in love or you’ll be just normal
friend. Never a brother/sister relationship.” I find it a bit true
cause my guy friends always ask the gals to be their godsister when
they fail in their attempts to court the gals. For my case it’s her
who came and asked me to be her godbrother.