Vibromatic Heart Bed

The Vibromatic Heart Bed, introduced in The Sims: Livin' Large, gives your Sims the opportunity to play in bed. Send a Sim to turn the bed to 'Vibrate' and have that Sim lie in bed. Then, send a loved one to play in bed. They play a few, er, games, with their Fun and Social meters rising. However, one side effect of this activity is a baby appearing. (Oh, and by games, I mean... well, in The Sims 2 it's called WooHoo.