How I Met Your Mother remains one of the most iconic sitcoms in TV history, known for its sharp humor, heartwarming moments, and unforgettable TV couples. Among the fan favorites were Lily and Marshall, the adorably quirky duo played by Alyson Hannigan and Jason Segel. Over the course of the show’s nine-season run, the two shared plenty of romantic and affectionate scenes, making them one of the most beloved sitcom relationships ever. But behind the scenes, things weren’t always picture-perfect—especially when one of the actors brought a bad habit to set that made those love scenes less than ideal.
But what fans didn’t see behind the scenes is that those kisses weren’t always so pleasant. In several celebrity interviews, Alyson Hannigan admitted that kissing Jason Segel was difficult at first due to one particular celebrity habit—smoking. As a non-smoker, Alyson struggled with the lingering smell during their many romantic scenes, which made the experience far less enjoyable. Fortunately, Jason eventually gave up the habit, improving both his health and their overall on-screen dynamic. It’s a classic reminder that even the sweetest TV show moments often hide some unexpected behind-the-scenes secrets.
