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Ashlee Simpson JSIMPSONDOG041408_01.jpg

Ashlee was all smiles when she headed to LAX with her sister Jessica just a few short hours ago.

Although Pete has issued a denial, Ashlee's rep has yet to confirm OR deny the rumors.

But if she REALLY wanted to deny it, why would she pull the old "bag in front of belly" trick?

What do YOU think - is she "glowing" or just happy?