|“|| Alaric: I just want one of the doctors here to check them out first. We can take them home in the morning. Listen, uh... the things I said... I'm sorry. I'm really sorry.
Caroline: You were right. Genetically, they are not mine. But I gave birth to them, I raised them, I loved them... and when they went missing, I felt like I was dying. So don't you ever throw that in my face again.
They became a family when it was discovered Caroline was pregnant, as a surrogate mother, to Alaric and his deceased fiancée's (Jo Laughlin) twin daughters. Caroline decided to keep the babies and gave birth to them in This Woman's Work. Caroline then decides to help Alaric raise the babies after he tells her that he plans on taking them out of Mystic Falls. Caroline and Alaric become engaged throughout the three years of helping each other raise the children, which strengthened their family bond as the twins grew older. Alaric and Caroline continue to raise the twins although their engagement fell through.
During Season Eight, Alaric and Caroline continue to raise their daughters together despite their broken-off engagement. However, due to Damon's influence under Sybil's mind control, the girls are put in danger once again. Once Sybil is put down however, Kai Parker returns and puts their daughters' lives in danger for the second time in their lives. Once everything is resolved after this season and after Stefan's death, Alaric and Caroline turn the Salvatore Boarding House into a school for supernatural youngsters in which their daughters grow up in and attend.
Throughout The Vampire Diaries Series
- Alaric and Caroline are the first couple ever to birth babies from a vampire's womb (Caroline as a surrogate mother).
- Josette Laughlin is the twins' biological mother. She died however during Alaric and Jo's wedding.
- Alaric was engaged to both women who conceived, carried in the womb, and birthed his children.
- Alaric and Caroline are still willing to work together, despite calling off their engagement, in raising their children.