Wilmer Valderrama is officially a proud father of two! The That ’70s Show alum and NCIS star, 45, and his fiancée Amanda Pacheco announced the arrival of their second child, a baby boy named Wolf Monte Valderrama, born on July 11.

The couple shared the joyful news on Instagram on Saturday, July 19, posting a series of touching black-and-white photos from the hospital.

The images captured precious moments from Wolf’s birth – including intimate solo shots with their newborn, as well as a heartwarming photo of the couple’s 4-year-old daughter, Nakano Oceana, gently cradling her new baby brother.

For Valderrama, fatherhood has been a life-changing experience. “It gives you a sense of purpose that is hard to describe,” he previously told PEOPLE. “Like, you could in fact lift a car, if you had to. Being a girl dad has been the most fulfilling feeling.

As an artist, it’s also fueled me to make sure she has so many stories where she sees herself as the hero of her journey. I was born to be a dad.”

The couple revealed earlier this year that Nakano was actually the first person to learn about the pregnancy. “She read the results of the pregnancy test to Wilmer and me,” Pacheco shared. “And ever since, she’s been shouting it from the mountaintops to anyone she meets: ‘I’m going to be a big sister!’”

Pacheco added that Nakano had been “manifesting” a sibling long before they knew they were expecting. “She’s been wishing for a baby brother or sister for months,” she said. Valderrama noted how thoughtful their daughter had been throughout the pregnancy, often showing love and care for her mom along the way.

With the arrival of baby Wolf, the Valderrama family is growing – and so is their joy. As Wilmer steps into this next chapter of fatherhood, he continues to embrace the role with passion, gratitude, and a heart full of love.