What I love the most about playing TS4 is genetics, seeing similarities in generations.
So show your sims with their parents, grandparents, your entire family tree!
Here are a bunch of my sims, parents to the left and their kids to the right in each image.
Ollie Purdue and Jocelyn Dale with their son Jay Dale Purdue:
Eric Lewis and Alice Spencer-Kim and their daughter Olivia and twin daughters Juniper and Arabella:
Jay Dale Purdue and Olivia Spencer-Kim-Lewis and their daughter Aylin and triplets Connor, Kaylee and Kiera:
Many more in spoiler:
Ernest Caliente and Aylin Purdue and their twins Emory and Emmalyn:
Connor Purdue and Martina DeRoy and their daughter Kim Jocelyn, twins Arvin and Katelin and daughter Janice:
Connor Purdue and Tricia Violet and their identical twins Brooke and Alayna:
Gunnar Hoff and Kaylee Purdue and their twins Dennis and Vivian:
Malcom Landgraab and Lillian Cloud and their sons Kenneth and Desmond:
Kenneth Landgraab and Kiera Purdue and their twins Billie and Bobbie and daughter Lillian:
Desmond and Kirsten Landgraab and their daughters Kyra and Savanna and son Jensen:
Wolfgang Munch and Maki Sasaki and their daughter Brylee and son Cooper:
Arvin Purdue and Brylee Munch and their sons Trevor and Olivier:
Trevor Purdue and his first love Annabel with their son Victor:
Aryo Banerjee and Cassidy Purdue and their daughters Martha and Nikita:
Judah Richther and Martha Banerjee and their identical twins Javie and Jude:
Jude Richter and Karli Curtis and their identical twins John and Jean:
Lamont and Kendra Vogel and their kids Leanna and Arthur:
Arthur Vogel and Nikita Banerjee and their daughter Joelle: