Heidi Klum & Martin Kirsten: Motorcycle Ride Without Kids!

Heidi Klum and boyfriend/bodyguard Martin Kirsten take a spin on his motorcycle before heading to lunch on Saturday (August 3) in Santa Monica, Calif.

The day before, the 40-year-old Project Runway host donned cool kicks while doing some grocery shopping at Whole Foods supermarket in Brentwood.

PHOTOS: Check out the latest pics of Heidi Klum

Heidi was accompanied by all four of her kids – Leni, 9, Henry, 7, Johan, 6, and Lou, 3, for the grocery trip.

Earlier in the week, Heidi was all dressed up while attending an event for her hit show America’s Got Talent in New York City.

25+ pictures inside of Heidi Klum riding on a motorcycle…