Actor Rob Lowe and Sheryl Berkoff just hit 31 years of marriage.

Lowe, 58, gushed about his wife on his Instagram amid their anniversary celebration.

“Happy 31st Anniversary, baby. Your love has made my world. You are as beautiful, knowledgeable, fascinating, kind, and hilarious as you were so many glorious years ago. Partners in love for life!!” he wrote alongside a black and white picture of the former makeup artist, jewelry, and interior designer.

Berkoff, 61, also took to Instagram to mark the milestone in their marriage alongside a picture of themselves, “Love is always. Celebrating 31 years. Blessed and grateful. Happy Anniversary xoxo.” 

Lowe and Berkoff had first met in the 1980s after mutual friends set them up for a blind date. Although things didn’t work out and the pair parted ways, they did rekindle their romance two years later. During the break,  Berkoff also famously dated Lowe’s co-star, Keanu Reeves.

The couple eventually tied the knot on July 23 1991 and share two children- sons Michael, 29, and John, 27.

While working as a make-up artist in Hollywood,  Berkoff also met Gwyneth Paltrow who was 15 or 16 years old at the time. On an episode of Literally with Rob Lowe podcast, Paltrow revealed Berkoff was the first person to teach her how to perform oral sex. 

“I met Sheryl and I was, like, immediately obsessed with her. She was so cool. She knew that I was sneaking cigarettes, and she would come to smoke with me behind the trailer. And she taught me how to give a blow job, and you know, all the classic Sheryl stuff,” the actress shared.