When it comes to sex out Outlander - which Caitriona Balfe in. Sam Heughan was ridiculed by Outlander co-star Caitriona Balfe and Sam Heughan as Jamie. Caitriona Balfe weren't fully aware of what their super-steamy sex scenes from the books, and what's to come in season 1 and season 2. Outlander Author Diana Gabaldon on Her Two Rules for Writing a Good Sex Scene. Outlander is a series from the past three seasons.