A family with two mothers, and one son.
The Family: Woman, Woman, Boy emoji is a ZWJ sequence combining ? Woman, Zero Width Joiner and ? Boy. These display as a single emoji on supported platforms.
Family: Woman, Woman, Boy was added to Emoji 2.0 in 2015.
U+1F469
U+200D
U+1F469
U+200D
U+1F466
??? Woman
??? Zero width joiner
??? Woman
??? Zero width joiner
??? Boy