The Sealbys are one big happy family. Venessa and Lucas are parents of 5-month-old daughter, Adrian, while Kerissa and Jacob share Sophie, 19 months. With Venessa and Kerissa being identical twin sisters and Lucas and Jacob being identical twin brothers, Sophie and Adrian are cousins, but also genetic siblings known as quaternary twins. Quaternary twins occur when one set of identical twins has children with another set of identical twins. Link in bio for more details. #TODAYShow #Twins #IdenticalTwins