Admission for four persons goes along with the CL villa booked by the OP (actually 5 plus one under 3 but who's counting?!).
The OP is entitled to more than four spots in the lounge and plans to use four spots. Nothing sneaky about it whatsoever -- just good planning.
What is the basis for these statements? Booking a CL room gives access to the CL lounge for all members of the party that booked the room. If there are 4 people in a party, then 4 people have access to the lounge; if the party consists of only 2 people, then 2 people have access to the lounge. There is absolutely no basis for the notion that simply because a room can accomodate 4 people, that booking such a CL room means that one is then entitled to 4 "spots" in the lounge (and that one can then bring additional people who are not part of the party into the lounge in order to use those extra "spots").