X17 XCLUSIVE - Lindsay's Still Stalking Her Ex, Sam Enlists Security To Keep Lohan Away

Lindsay Lohan is barely back from a whirlwind trip that included London and Atlantic City and already she's back to doing what she does best: stalking Sam!

Of course, being a DJ, Samantha does make it easy for Lindsay to find her and last night was no different. Samantha was spinning at club Bardot, where Lindsay headed to at 1:10 in the morning!

A source inside the club tells X17online exclusively that as soon as Sam saw her ex, she enlisted the help of two security guards. Says the source, "Samantha wanted to send Lindsay a message. So she made sure security was guarding the DJ booth at all times while she worked. Lindsay didn't dare try to talk to her or make a scene with two big guys standing between her and Samantha!"

Lindsay stayed at the club until 2:30am, leaving with a girlfriend to head over to the Peninsula hotel. Lilo finally called it a night at 4am when she left the hotel and went home.

Lindsay did reveal in an interview with The Sun yesterday that she was still holding out hope that she and Sam would reconcile, but it doesn't appear that Sam's of the same mindset!