The linking of them that I have learnt is that you start with Natural Top and do the first 2,3,cha-cha-cha. Then the girl puts right forward to continue but spins anti-clockwise on the right leg and comes back into the man's frame. Then you continue with the Natural Top like normal with 3,cha-cha-cha, 2,3,cha-cha-cha.
Hope this helps!