Heidi Klum And Boyfriend Martin Kristen Can't Keep Their Hands Off Each Other

Love is most definitely in the air.

Heidi Klum and her bodyguard-turned-boyfriend Martin Kristen hit the beach in Malibu on Saturday after a hike in the Hollywood Hills and Martin couldn't keep his hands off her ... stomach. The lovebirds lounged in the sand and watched Heidi's children play in the water, periodically sneaking in belly rubs, kisses, and hugs.

The new America's Got Talent judge, who was dressed in a flowy striped black and white halter, looked completely at ease during the outing. At one point, she wrapped her arms around Martin from behind while resting her head on his back.

However, Martin's hand placement on his girlfriend's belly was a bit peculiar. He was probably just resting his hand or showing affection, but there's also the possibility that Heidi's pregnant with baby number five. She's already mom to Leni from ex-boyfriend Flavio Briatore and Henry, Johan, and Lou from ex-husband Seal. At least we know the baby would be born into a loving household.