Sororital (what would be the counterpart to "fraternal"?)

Also-- this week my beautiful sister is being featured on Journal Modiste , a webzine devoted to children's fashion for her rocking tot-wear. Unlike the lumpen-kinder, I was wearing her psychedelic patchwork way back in the mid-80s as I cavorted around the sandbox, but how nice for you late-adopting kids to finally catch on.
Love you Rachel!