Pregnancy can affect you in weird ways. Cravings - including the famous pickles and ice cream combination - are not uncommon, though they are frequently for ordinary things, like candy bars. Candy bar cravings aren't a problem when you can dash out to 7-11, but when you live in Namibia, it can be a lot more difficult to get a Reese's.
Angelina Jolie reportedly had a crate of Reese's Peanut Butter Cups flown to her in Namibia, straight from the Hershey's factory in Pennsylvania, when she was unable to obtain any locally. Reese's are good, but are they that good? It must have been some craving - either that or she's planning to share with Maddox, Zahara and Brad.