Arnold Schwarzenegger — Foursome with New GF’s Family

0422_arnold_girlfriend_INFIn an effort to score points with his new GF, Arnold Schwarzenegger took Heather Milligan“s father and sister out for a double-date dinner at Spago in Bev Hills this week.

But here”s the fun part …. Heather is reportedly 38 years old … and Arnie is 65 … which could mean Arnie was the senior member of the dinner party … which is kinda weird, right

Who pays Who opens the door for who Who complains that it”s past their bedtime first

FYI — When Arnold won his first 5 Mr. Olympia titles, Heather hadn”t even been born yet … when he starred in “Conan,” she was 7 … and when Arnold secretly impregnated his maid while still married to Maria Shriver, she was only 23.