P.S. If you DON'T invite a friend (and you SHOULD), still carry out this very.same.plan.
If you feel that including the "you might want to wrap up your visit by then" caveat is a little too cold, then say something like: "Yeah, no problem. But I have a friend coming over at x p.m. What time are you thinking of stopping by?"
M: 40 H: 44 Married 14 years S11 & D6; D20 & D19 from previous M 2BDs/PAs, 8 years apart Piecing: April 2014