Leonardo DiCaprio got the best Christmas gift this year ... bikini-clad ex-girlfriend Bar Refaeli.
The former couple seem to be back on as they vacationed together in Mexico over the holiday weekend.
No word if they were naughty or nice.
Leonardo DiCaprio -- Bar Hopping in Mexico
12/28/2009 3:55 AM PST BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox