Halle Berry — The Jiffy Pop Effect!

Just like a batch of gorgeous Jiffy Pop popcorn, mom-to-be Halle Berry“s baby bump is blowin” up.

While barely showing any overt signs during the last few weeks, the beautiful three-plus months preggers 46-year-old heated up the premiere of her latest bomb, “The Call”, in Rio on Thursday … and showed off her suddenly huge Halle belly.

At this rate, the Oscar winner should max out at Jessica Simpson DEFCON Five pregnancy stage levels in no time.