Using a knife, a cupcake corer, or a round piping tip, cut out the centers of all your cupcakes. Add filling so it is flush with the top.
Take one large frosting bag and cut off the tip. Insert your largest bore round tip. Fill two frosting bags (WITH THE TIP NOT CUT OFF), one with white frosting and one with pink frosting.
Snip the tips off the pink and white frosting bags while they are laying flat on the table.
Put the pink and white frosting bags side by side inside the big frosting bag with the round tip. When touching the bags, touch the top not the bottom where the frosting is. Try to put the pink and white bags the same level. I do it while holding the big bag vertical and drop the other two in. You can also try it laying on a table.
Tie off the top of the big frosting bag with a rubber band and squeeze gently to get the frosting to fill the metal tip.
Frost your cupcakes and add decoration on top as you please.