Salma Hayek is having a proud stepmom moment.
The Grown Ups star took to social media this week to share a sweet birthday tribute to her stepdaughter, Mathilde "Tildie" Pinault, who marked her 21st birthday on Friday, Feb. 21.
"Happy Birthday Tildie 🎂," the 58-year-old actress wrote on Instagram while sharing a series of rare photos with her model stepdaughter.
Mathilde is one of Hayek's three stepchildren, who her husband François-Henri Pinault welcomed during previous relationships.
The new Instagram photos included an array of glammed-up moments between Hayek and Mathilde, as well as a throwback childhood photo, which also featured Hayek's daughter Valentina, whom she and Pinault welcomed in 2007.
"Wishing you a year as bright, beautiful, and full of promise as you are," Hayek wrote to Mathilde, before adding, "So proud of the woman you’ve become! We love you @mathildepinault ♥️."
Mathilde replied in the comments on Hayek's post, leaving three simple heart emojis under the sweet tribute.
The Without Blood actress became a stepmom to Pinault's three children when she married the French businessman in 2009. Pinault, 62, shares Mathilde and 27-year-old son François with ex-wife Dorothée Lepére, whom he was married to between 1996 and 2004.
Pinault is also a father to 18-year-old son Augustin "Augie" James, whose mother is supermodel Linda Evangelista. Pinault briefly dated Evangelista, 59, in 2006, shortly before sparking up a romance with Hayek.