Heidi Klum and Martin Kristen have lunchHeidi Klum and brawny boyfriend/bodyguard/babysitter Martin Kristen strolled around the West Village’s Meat Packing district Saturday and had lunch alfresco at trendy Standard Grill.

The affectionate duo have been out and about in the city all week and reportedly had a fight that had the muscle man storming out of dinner at The Spotted Pig.

Talking about Kristen, Klum told Bunte, a German magazine: “He’s been helping me for four years now, and he takes wonderful care of the kids. He plays with them, he protects them. I trust him.”