Front Post Treble Crochet 2 Together (fptr2tog)

[YO twice, insert hook around post of indicated st, YO and pull up a loop, (YO and pull through 2 loops) twice] (2 loops on hook). [YO twice, insert hook around post of next st, YO and pull up a loop, (YO and pull through 2 loops) twice] (3 loops on hook). YO and pull through all remaining 3 loops.