Both pairings involve a woman who is born into royalty and a man who is a criminal या outlaw.
Both couples involve a hero and a redeemed villain.
Both couples are सेकंड chances at प्यार for all characters involved. Emma's first प्यार was Neal Cassidy while Killian previously loved Milah. Regina previously loved Daniel while Robin was married to Marian.
Both pairings were confirmed as True प्यार द्वारा means other than a True प्यार Kiss. Regina was led to Robin using pixie dust, while Emma and Killian passed the Underworld's test to access the ambrosia and also reunited using a pixie flower.