You can go the Hugh Hefner route and date multiple hot blondes or, if you prefer, you can even enter a group marriage – let your freak flag fly! All without that pesky jealousy getting in the way. With the polygamy mod, your Sims are now able to have a relationship with -and marry – more than one person at a time. Sims have an option to “develop crush/love” on other sims of the same age group (teen-to-teen or adult/elder-to-adult/elder – no, I won’t be making a version for teen/adult), which will set the “crush”/”love” flag and also trigger the crush/love FX (sound effect, floating pink hearts above their head). Now, with The Sims 4, no sim has to have multiple partners, but the option is there. Sims can still only have one spouse, but it is possible to have multiple other partners without the world ending. Have Sims become Playful at the same time – use Funny Socials.Have both Sims become Flirty at the same time – use Romantic Interactions.