The Golden Age of Swingers

 is the main questline of the Valentine's Day 2016 Event. It unlocks one building and a façade for it, 2 decorations, and the character Mona. Since several of the tasks require Grampa, it requires at least level 19 to complete.

Characters
Pt. 1 - Agnes, Bart, Grampa, Janey, Jasper, Molloy, Milhouse, Old Jewish Man, Skinner.

Pt. 2 - Agnes, Flanders, Grampa, Molloy, Martin, Skinner.

Pt. 3 - Bart (only to steal candy), Brockman, Fat Tony, Frink, Luigi, Molloy, Snake, Willie.

Pt. 4 - Grampa, Molloy, Moe, Mr. Burns, Old Jewish Man

Pt. 5 - Agnes, Brockman, Flanders, Grampa, Guiseppe, Hans Moleman, Judge Snyder, Martin, Molloy

Start
"Recruit Molloy to earn double Valentine's rewards!"

- System Message.

End
"Tune into this week's Simpsons to see what Springfield gets up to for Valentine's Day! Sunday 8/7 Central on FOX!"

- System Message.

End
"Visit the Valentine's store to romance up your Springfield!"

- System Message.