In a photo posted on her Instagram page on Tuesday, the 30-year-old Dutch beauty is pictured nursing her and husband Sunnery James' 1-year-old daughter, Myllena, in what marks the fourth time she's posed for a breastfeeding pic in more than three months.
"#grateful #vacation #qualitytime," Kroes wrote.
She and James, 36, who are also parents to son Phyllon, 4, are on holiday in Ibiza. The supermodel's husband also posted on his own Instagram page a sweet pic of himself feeding Myllena a bottle of milk.
"QT with my princess!" he wrote.
Earlier this week, on Myllena's first birthday, Kroes had shared a cute video of the little girl playing with a toy drum set.
Kroes had said in April, alongside a post showing her pumping breast milk, that she is ""promoting breastfeeding," adding, "it's the best for your baby when possible!"
She had previously shared a photo of herself nursing Myllena in June. She is also seen breastfeeding the child while sitting in a bed with James and their son in a Vogue Netherlands March 2015 photo spread.