Aphrodesiac meal
Go into the fridge and select the ingredients: pork, carrot, lime and passion fruit. (Passion fruit is harvested from a frood tree, which you can buy and plant.) Go to the kitchen and cook Hors D'Oeuvres. The finished meal will have hearts coming out the top of it. Eat the meal and for a few minutes your Sim will have hearts coming out the top of its head. Interact your Sim with another Sim, and you can automatically use the romance socials. Even better, the Sim you are romancing will find you irrisistable and will respond positively to all moves!