On last round, stop one st shy of end of round, w&t
You should have just completed an increase round.
At this point, to extend the crotch a little further and add a bit more length to the back, we will work some additional short rows. Crotch increases will continue on either side of the gusset on right side rows.
Work as many short rows as you need to achieve a good fit. It is recommended that you periodically move your live sts to waste yarn and try the garment on. The front crotch gusset will go between your legs in front and meet with the back crotch gusset. Fit should be snug but comfortable when you complete this section.
Incs are worked on right side rows as follows:
*Work to center marker, l1l, SM, work to next marker, SM, l1r.* Work remainder of row as indicated.
You are no longer adding sts to the gusset. The back gusset needs to remain the same width as the front gusset. Increases are now happening outside the gusset.
Row 1: Work to one st before side marker, w&t.
Rows 2-7: Work to 5 sts before last w&t, remebering to work inc on even rows, w&t.
You should now be ready to begin a right side row. Knit to end of round, working incs as above and picking up all wraps along the way.