KATIE与慧娴来出席婚宴，两人都以为是芷青的大喜之日，怎么知道来到酒店的时候，才发现原来是芷青的老爸结婚。两人看到芷青的老妈也出席，还帮忙招待客人，觉得匪夷所思，更吃惊的是看到芷青的老爸娶了一个比女儿来得年轻的嫩草。当年KATIE，慧娴和芷青是在拉萨学院就读服装设计。毕业后，三人各奔前程，往不同的行业发展。KATIE学以致用，当上了名设计师，芷青却误打误撞进入了电视台当副导演，挨了几年后，终于挑大梁当上导演，最不得志的就是慧娴，她目前是在一家女性杂志社担任记者，主要采访服装时尚服饰，对慧娴来说，她最大的成就就是嫁给当导演，疼爱她的好老公傅炜铭。KATIE嫁给了当广告平面设计师的JOVAN，育有一个九个月大，可爱的女宝宝。一天，KATIE翻看I周刊杂志，发现影视制作公司正筹备开拍《奶爸百分百2》，找寻女宝宝出演电视剧。KATIE不顾JOVAN反对带宝宝去试镜，宝宝在镜头前呆呆的没反应，KATIE还以为试镜失败大表失望，没料到女监制不顾导演反对，坚持录取宣宣。KATIE知道后，欣喜若狂把宝宝举起来，却搞得宝宝整个人跌落在地上，吓得他们要命！为了要让宝宝去拍戏，KATIE要JOVAN拿两个月的无薪假，JOVAN的公司不肯放人，JOVAN被逼辞职，当起了全职奶爸。戏开拍时，宝宝变幻莫测的情绪，搞到片场天翻地覆，每个人都出尽法宝要哄宝宝，两个导演也被宝宝搞得精疲力竭。为了要让宝宝与戏里的男主角仁贤培养感情，导演要求仁贤住进KATIE家。KATIE与JOVAN除了要照顾小宝宝外，还要照顾饭来张口，衣来伸手的大BABY，让两人忙上加忙。慧娴每天都听到炜铭的抱怨，忍不住问他会不会因此而对宝宝产生恐惧感？这一对夫妻结婚多年一直没有怀孕，炜铭很渴望有自己的孩子，慧娴却对怀孕有恐惧感，不敢坦白老公，只能默默的配合，慧娴的家婆也一直寻找受孕的土方，搞到小两口啼笑皆非。自从炜铭的弟弟炜德娶了一个育有两名儿子的离婚妇回来后，慧娴隐隐感到在家中的地位受到威胁，更感压力。自从JOVAN辞职后，心情显得郁郁寡欢，KATIE因为过于关注工作和宝宝，忽略了JOVAN，两人的关系日渐恶劣，JOVAN在外头寻找宣泄的管道，却不小心遭人陷害，他被一个女人控诉性侵犯，还因此被抓去警局接受调查。追求完美的KATIE，无法接受老公这个污点，任凭JOVAN怎么解释，她都不相信。JOVAN因此性情大变，把自己封闭在家里，宣宣无法去拍戏，搞到剧组阵脚大乱。这时，KATIE的公司要委派她出外公干，KATIE想乘机离开新加坡散心，却放不下宣宣，芷青为了要让宣宣继续拍戏，只好自告奋勇当起宣宣的奶妈，然而，没几天她就投降了，还找来仁贤助她一臂之力，在这个过程里，抱着独身主义的芷青感觉到仁贤对她有意思，心里很恐慌，故意逃避仁贤，也只好把这个烫手的山芋丢给了很有爱心的炜铭。宣宣就这样被两个导演当着人球一样的抛来又抛去，炜铭开始了他短暂的奶爸生涯，慧娴当然也在这个过程中，渐渐的喜欢上孩子。。。没多久，慧娴传来喜讯，JOVAN终于洗脱了嫌疑，他和KATIE和好如初，KATIE还怀上了第二胎，为了兼顾家庭与事业，一向排斥与家婆家翁同住的她，终于明白家有一老，如有一宝的真谛，把两个老人接来同住。与此同时，芷青也传来了婚讯。。。KATIEandHUIXIANwenttoattendaweddingdinner,thinkingthatitwasZHIQING'sbigday.However,totheirsurprise,itturnedouttobeZHIQING'sfather'swedding.BothofthemwereequallyamazedtoseeZHIQING'smotherhelpingtoentertaintheguests.Themostsurprisingmomentofthedaywaswhenbothofthemsawthebride,whoturnedouttobeyoungerthanZHIQING!KATIE,HUIXIANandZHIQINGstudiedFashionDesigntogetheratLasalleCollegeofArts.Aftergraduating,the3ladieswentpursueddifferentcareers.KATIEpracticedwhatshestudiedandbecameafashiondesigner.Unexpectedly,ZHIQINGbecameanassistantdirectorataproductionhouseandafterseveralyears,becameadirector.Theleastambitious,HUIXIAN,wasworkingasreporterofafemalefashionmagazine,coveringthelatestfashion-wearandaccessories.ToHUIXIAN,herbiggestachievementwastohavemarriedherdotinghusband,BOWEIMING,adirector.KATIEwasmarriedtoadvertisinggraphicsdesigner,JOVAN,andhada9-montholdadorablebabygirl.KATIEwasflippingthroughi-WeeklyonedaywhenshesawanadvertisementstatingthataproductionhousewasgoingtoproduceanewTVserial,"NannyDaddy2",andwaslookingforababygirl.KATIE,ignoringJOVAN'sprotests,broughtherbabytotheaudition.Duringtheaudition,XUAN-XUANcouldonlystareblanklyatthecamera.KATIEwasalmostsurethattheyhadfailedtheaudition.Despitethedirectors'protests,theexecutiveproducerpersistedinusingXUAN-XUAN.Ecstatic,KATIEhappilyheavedherbaby,butaccidentallycausedXUAN-XUANtofall,shockingthosearoundher.Toenablethebabytoactintheserial,KATIEaskedJOVANtotaketwomonths'unpaidleave.Unfortunately,JOVAN'scompanydidnotwanttoapprovehisleaveandhewas,inturn,forcedtoquit,becomingafull-timestay-at-homedad.XUAN-XUANbecamecrankyandunpredictableduringfilming,creatingchaosontheset.EveryoneinthestudiotriedallwaystocheerXUAN-XUANup,andthetwodirectorsweredrainedoutintheprocess.Thedirectorrequestedforthemalelead,RENXIAN,tomoveintemporarilywithXUAN-XUANtofosterabondbetweenthetwo.UnfortunatelyforKATIEandJOVAN,RENXIANdidn'tknowhowtocareforhimselfandwasincrediblydependent.HUIXIAN,afterlisteningtoWEIMING'sincessantcomplaints,curiouslyaskedifhedevelopedaphobiaofbabies.Thiscouplehadnochildrenaftermanyyearsofmarriage.WEIMINGyearnedforhisownchild.HUIXIAN,ontheotherhand,hadamorbidfearofpregnancy.Asshedidnotdaretellherhusbandaboutit,shecouldonlysilentlycomplywithhiswishes.HUIXIAN'smother-in-lawkeptsearchingforwaystogetherpregnant,whichcreatedmuchawkwardness.EversinceWEIMING'syoungerbrother,WEIDE,marriedawidowwithtwosonsintow,HUIXIANfeltherstatusinthehouseaffectedandshebecamemorestressedout.SinceJOVANquithisjob,hestartedtoslipintodepression.KATIEwasexcessivelypreoccupiedwithherworkandXUAN-XUAN,completelyneglectingJOVAN.Thisstrainedtheirrelationshipfurther.JOVANstartedtoseeksolaceoutofhishomeandwasentrappedinamolestcase.Accusedofmolestation,JOVANwasarrestedbythepoliceforfurtherinvestigation.Aperfectionist,KATIEcouldnotacceptthisincident.NomatterhowJOVANexplained,shewasunconvinced.Henceforth,JOVANbecameachangedman,ashelockedhimselfathome.XUAN-XUANwasthusunabletoattendfilmingsessions,whichcausedproblemstotheproductionteam.Meanwhile,KATIE'scompanywantedtosendheronabusinesstripoverseas.KATIEwantedtotakethisopportunitytogetawayfromitall,butwasworriedaboutXUAN-XUAN.ZHIQINGvolunteeredtocareforXUAN-XUANwhileKATIE'sabroadsothatfilmingwouldnotbedisrupted.Afewdaysintothe"job",ZHIQINGgaveupandgotRENXIANtogiveherahand.ZHIQING,whowasbentonremainingsingleforlife,feltRENXIAN'saffectionsforherandpanicked.ShestartedtoavoidRENXIANandhadnochoicebuttopassXUAN-XUANtothecompassionateWEIMING.Hence,XUAN-XUANwasbeingpassedlikeaballbetweenthetwodirectors.WEIMINGexperiencedwhatitwaslikebeingafatherandHUIXIANbegantolikechildren.Notlonglater,HUIXIANfoundherselfpregnant.JOVAN'snamewascleared,andheandKATIEwerebacktogether.KATIEbecamepregnantagain.Tobalancebetweenfamilyandwork,KATIEdecidedtoletinviteherin-lawstostaywiththem(thoughshewasoriginallyaversetotheideaoflivingwiththem),asshefinallyunderstoodhowvaluableitwastohavetheelderlyaroundinthehouse.Atthispoint,ZHIQINGalsohadgoodnewstoshare.