Inc 2..*puzzled*

Okay so here are the pattern directions:

Thumb increase:
1: k4, P2 five imes, K4, P1, Inc 2, P1
2: k4, P2 six times, P2.

my question is when I get to where I am “supposed” to increase it is a purl stitch. How do I inc 2 in a purl stitch?

Thanks.

Jess

You could do pfb in the purl sts.