I had a request at my tumblr to upload generation 2 of my Periwinkle Legacy sims so here they are. Both siblings are packaged with base game content only. Some of their traits are EP specific but I am assuming that they will simply be replaced. I use awesomemod sliders x3 but as long as you do not edit their faces then you don't need them. Penelope has pointed ears and I used the Pointed ears as CAS sliders by CmarNYC for those. Not sure if you need that for them to show up.
Download link contains both Penelope and Oliver in .sim and .sim3pack format.