Jamie Lynn Spears and the biological father of her unborn child, Casey Aldridge, spent Memorial Day just like all other famous, unmarried, expectant teen lovers -- at Wal-Mart.
The pregnant babies shopped for vittles and other discounted items at a local Mississippi branch of the super chain.
Big Markdowns for Unwed Pregnant Teen Couples
5/28/2008 1:10 PM PDT BY TMZ STAFF
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