Lucy Mecklenburgh posted a sweet photo of her son Roman with his new baby sister ahead of their first family outing since her arrival on Wednesday morning.The 30 year old revealed to fans that her two year old boy had been “constantly kissing” his sibling since she arrived home as she shared the touching image. Lucy and her fiancé Ryan Thomas, 37, announced that they welcomed their baby girl on Tuesday as they posted a touching black and white photo of their daughter in a white Babygrow. New mum-of-two Lucy followed up that snap with another glimpse of her newborn in a picture she uploaded on Instagram Stories, which showed older brother Roman leant over his sister as he kissed her tenderly on the forehead.