Mix the sweetened condensed milk, 1 package cream cheese and 200 milliliters of key lime juice at medium speed until smooth. Add half the package of lime jello to 1/4 cup of hot water and mix together to thick consistency . Add to milk and cheese mixture whisk at medium speed until combined. Pour into pre made pie crust. Refrigerate for at least 6 hours . When ready to serve mix 1 Cup of heavy cream and sugar in high speed mixer to make whipped cream. Take pie out of the fridge and topped with whipped cream. Enjoy!