Nothing stops Kareena from being a loving girlfriend to Saif, not even her packed schedule.

She took off with Saif to an undisclosed location near Chicago for a secret vacation, as a birthday present to Saif (his birthday was on August 16). They took off after completing their professional commitments and spending some time with close friends.

Incidentally, they left for their secret retreat a day after Saif's birthday. According to sources, they were busy with prior commitments in Houston due to Independence Day, after which they had to attend a meet and greet event in Chicago.

They reached Chicago late in the evening on August 15 and attended the event with Shah Rukh and Katrina, after which they had dinner with them.

Kareena planned the holiday to surprise Saif, informed sources. The destination is still unknown and they will be back in Mumbai by the end of this week.