SimGuruGraham recently said that woohoo in the stack of leafs is not the only place where our Sims can have an intimate moment. The latest patch has added some visual effects for Seasons which can be played through the fog emitter. In the list of the new visual effects you can find the visual effect of petals falling on an igloo, so it looks like the unannounced woohoo will be woohoo in the igloo.
They’re never running out of ideas for woohoo, are they? 😛
Source: Rincón del Simmer