If you're considering pregnancy and having babies, that requires its own set of steps to consider! Whether you're a hopeless Sim romantic, a would-be Sim lothario, or a coolly detached achievement or trophy hunter (where WooHoo appears often!) this WooHoo page will take you through the various requirements for, and benefits (and risks!) of WooHooing in The Sims 4 and who can WooHoo with who.
WooHoo in The Sims series is the ultimate expression of romantic love between two Sims and, if you want to get blunt about it, the ratings-friendly Sims version of sexual intercourse first introduced in The Sims 2.