Use a 9-inch springform pan. Spray with a baking nonstick spray. Set aside.

Using a blender, blend the Oreos into a fine crumb. Add in the melted butter and mix.

Pour the crumbs into the pan. Use your hands to press the crust halfway up the sides of the pan. Use the bottom of a measuring cup to compact the bottom of the crust.

Place in the freezer to set while you make the pie batter.

In a small bowl, add the chocolate chips. Heat the heavy cream in a small saucepan over medium heat, until steaming. Pour the hot cream over the chocolate chips and let sit for 2 minutes. Stir the chocolate until smooth. If any chocolate chunks remain, heat in the microwave for 10 seconds and stir.

Using a mixer, beat the cream cheese and powdered sugar on high speed for 2 minutes.

Add in the cocoa powder and melted chocolate and mix on high speed until creamy. Set aside.

Using a mixer, beat the cream cheese and powdered sugar on high speed for 2 minutes.

Add in the peanut butter and sour cream. Mix on high speed until creamy. Set aside.

Using a metal bowl with a whisk attachment, beat the heavy cream, powdered sugar, and vanilla on high speed until stiff peaks form.

Pour half of the whipped cream in both the chocolate pie and the peanut butter pie.

Use a rubber spatula to gently fold the whipped cream into the pie batter. Be gentle to not knock the air out, this will take a few minutes. Do this for both batters.

Spread the chocolate pie on top of the crust. Spread it evenly. Spread the peanut butter pie on top of the chocolate. Spread it evenly.

Cover with foil and chill in the fridge for at least 6 hours or overnight.

Using a metal bowl with a whisk attachment, beat the heavy cream, powdered sugar, and vanilla on high speed until soft peaks form.

Heat the peanut butter in the microwave for 15 seconds. Add the warmed peanut butter to the whipped cream and beat on high speed until stiff peaks form.

Remove the springform ring. You can keep the bottom pan on, or you can remove to a separate platter.

Top with the peanut butter whipped cream and add chopped peanut butter cups for decoration.