Lisa Kudrow was filled with pride as she watched her son Julian graduate from the University of Southern California (USC) on Sunday. The Friends star shared a picture of herself cuddling up to her 23-year-old son, who was dressed in the traditional graduation gown and mortarboard headgear, on her Instagram page. "Happy proud HAPPY. And a little crying. By me not him.. @juls_magewls (his Instagram handle)," she captioned the image. Julian wasn't the only celebrity offspring to take part in the USC graduation over the weekend, as Everybody Loves Raymond star Patricia Heaton also shared a snap of her son sitting on his chair in the distance. "I think that's our son who swears he is graduating today. Our Covid seating makes it hard to know. #USC," she wrote alongside the image shared on Twitter and Instagram. Lisa is mother to Julian with husband Michel Stern and was expecting while filming season four of Friends - with her pregnancy written into the show as her character Phoebe acted as a surrogate for her brother Frank. Talking to People in 2018 about filming scenes for the show while pregnant, Lisa said: "The six of us would do a huddle backstage and just say, 'All right, have a good show, love you love you love you love you.' "And when I was pregnant, then they would say, 'Have a great show, love you love you - love you, little Julian!' Cause we knew it was a boy and that was his name. So sweet, they included my little foetus in the huddle."