YO hook three times, insert hook into next st, yo and draw up a loop (5 loops on hook). YO and draw through 2 loops 4 times (triple treble made);
YO hook twice, insert hook into side of triple treble stitch in between 1st and 2nd wrap; YO and draw through 2 loops 3 times (dtr made);
ch 2, YO, insert hook through the dtr you’ve just made in between the 1st and 2nd wrap, YO and pull through loop (3 loops on hook), YO and pull through 3 loops (1 loop on hook);
YO twice, insert hook into side of double treble stitch AGAIN in between 1st and 2nd wrap; YO and draw through 2 loops 3 times.