Vector3:Lerp isn't working?

I'm not sure what I'm doing wrong but if you could help I would greatly appreciate!

	local Brick = script.Parent.Target
        Fract = 0.1

--wait(7)
--print"test"
		while true do
			wait()
		local Pos1 = script.Parent.Posi1.CFrame.p
		local Pos2 = script.Parent.Posi2.CFrame.p
		wait(0.1)
		
			
			NewPOS = Pos1:lerp(Pos2, Fract)
				Brick.Position = NewPOS
				--print"test2"
		end