text: Watch How I Met Your Mother Season 3 Episode 18 online via TV Fanatic with over 7 options to watch the How I Met Your Mother S3E18 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, Hulu Plus, and Verizon On Demand.
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  When Ted breaks Stella's trust by telling the gang she hasn't had sex in five years, their relationship becomes rocky. Meanwhile, Barney is desperately seeking a new bro and tries to make one out of a co-worker (Will Forte).