No-Bake Key Lime Mousse Pie

This is so easy to make, only takes 5 ingredients, and tastes unbelievable! You can use a graham cracker crust, but we prefer an oreo crust. Yeah, I know, oreo crust with a lime pie? Try it. DEE-LISH!
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1 Graham Cracker Crust
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1/3 cup Key Lime Juice (Wal Mart has it with the little plastic lemons and limes in the produce section)
1 Small Container Cool Whip
1 Can Sweetened Condensed Milk (not evaporated milk)
1 Lime for Garnish
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Mix the juice, cool whip and milk in a bowl until well blended.
Pour into the pie crust
Chill.
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Slice the lime.
Cut two of the slices in half.
Cut each half in half, but don't cut through the peel.
Twist each half and place in the middle of the pie in a "+" sign
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Be sure to let me know what you think!