They may have their differences, but there’s one topic Holly Montag and her brother-in-law, Spencer Pratt, agree on — babies! Heidi’s outspoken sister couldn’t hold back her disapproval of the blonde’s plot to trick her hesitant husband into fatherhood. “It’s really unfair. You cannot bring a baby in this world when one of the parents is not ready,” Holly told In Touch before the Hills’ live season finale event at MTV Studios on December 1. Holly, who clashed with Spencer from her first moment on the MTV reality hit, even thinks the couple should put the brakes on their marriage. “To be honest, I think they should reevaluate their whole relationship because they’re not on the same page about a lot of things,” she added. Luckily for the Pratts, the pair seemed to come to terms with the baby topic at the end of season five’s last episode. "Whatever you want to do, I'm right there with you," Spencer told his wife.