The Loving Family Ponies were released in Year 7 of the My Little Pony line and featured pony families with a mommy, daddy, and baby sister or brother. The mommy and daddy ponies each had different symbols and the baby ponies had a combination of symbols from both parents.
The daddy ponies in the Loving Family line had feathering around the ankles like the Big Brother ponies. Although baby boy ponies in other lines also had feathering, baby brothers in the Loving Family line did not. Instead, they just had lines around their ankles.
The baby sister ponies looked like regular baby ponies, while the baby brother ponies had slightly wider noses and legs and also had longer ears.