- "Here, cabron. Who's the bitch now, eh?"
- ―Catalina to Carl Johnson
First Base is a mission in Grand Theft Auto: San Andreas given to protagonist Carl Johnson by Catalina from her hideout in Fern Ridge, Red County. It is unlocked by the mission King in Exile and any one of the four robbery missions given by Catalina.
Catalina wanted Carl to return to her hideout to finish up robbing Red County. Carl heads up to her place to apologize for not treating her right and Catalina professes her love to Carl. This mission unlocks three out of a possible of four robbery missions given by Catalina, which are all but the one the player chose after First Date.
- The name First Base is likely to be a sexual innuendo that consists of making out, or French kissing.