Bristol Palin's Brother Trig Cradles Baby Sailor: 'He Officially Loves Her'

The 25-year-old's brother sweetly kisses his little niece.

Bristol Palin's brother Trig couldn't be more adorable while holding his newborn niece, Sailor Grace.

The 25-year-old shared a pic on Monday of her 7-year-old sibling sweetly kissing the baby. "Trig officially loves her ?," she wrote, adding the hashtag "#MyBrotherHasMoreChromosomesThanYou." 

Bristol revealed just two days before Christmas that she had welcomed her second child. She shared the news on Instagram, writing: "Our family couldn't be more complete."

WATCH: Bristol Palin Responds to Conspiracy Theories About Daughter Sailor's Birth Date

Bristol has faced some drama following the birth of her baby. In addition to some speculating as to the actual birth date of Sailor, Palin's ex-fiancé Dakota Meyer filed legal documents asking for joint legal and physical custody of Bristol's daughter, along with child support.

Bristol's mother, former Alaska governor Sarah Palin, spoke exclusively to ET about Dakota's request. Here's what Sailor's protective grandmother had to say.