Kat Von D has joined fiance Jesse James in Mexico as he prepares for an off-road racing competition next week, and naturally the lovebirds are posting hourly updates on Twitter about their adventure!

Jesse tweeted, "So Stoked! @thekatvond is gonna Pre-Run the coarse with me Manana!" Kat wrote back, "I get to be @FreeJesseJames' wing man during his pre run! If you ain't first you're last!"

After shutting down his West Coast Choppers custom bike shop last year, Sandra Bullock's ex-husband is set to compete in the 2011 Lucas Oil Off Road Series, with his debut race March 18-20 at Firebird International Raceway in Arizona.