Talk:Yang Xiao Long/@comment-24.140.136.244-20140802041729/@comment-3146930-20140806021631

Generally, but not always. It very much depends on what stage of the relationship they are in and who is taking custody of the children. My sister for example shares her last name with her mother, not her father. This is because our mom never married her father and our mother kept custody. Summer could have been dating their dad when she got pregnant and they split up, but when Summer died Ruby went to live with her father and her name was never changed.