Leni Klum, 21, publicly wished her adoptive father, Seal, 63, a happy birthday on Instagram, sharing a nostalgic photo of him holding her as a baby and expressing her love. Seal reciprocated the affectionate sentiment in the comments, calling Leni a "gift from heaven" that changed him forever. Their son, Henry Samuel, 20, also congratulated his father with a childhood photo featuring his siblings Lou, 16, and Seal, adding three red hearts. Seal and Heidi Klum, who were married for seven years until their 2012 separation, also have a son named Johan, 19. Leni, whose biological father is Flavio Briatore, has consistently shown her deep affection for Seal on social media.