Same-sex relationship Two male Sims kissing in The Sims 3. A same-sex relationship is a potential form of relationship in The Sims series. Players have been able to create same-sex relationships since the original game , but the way the game has treated these relationships has changed over time. Currently, there are five pre-made same-sex couples in The Sims series. However, several other Sims are implied to be gay or lesbian in their biographies.