No home with teenagers is complete without a couple of hundred condoms sitting around, says Sharon Stone. The actress appeared before a U.N. panel Tuesday on World AIDS Day, saying that teenagers are inevitably going to have sex, so they should do it safely. “When I was a teenager and I was having sex in the back of the car, my parents would not have thought it was a good thing,” Stone said. She suggested parents put 200 condoms “in a box someplace in the house where everybody isn’t all the time” so teenagers could take them without embarrassment, give them to their friends or even use them for water balloons. Having said that, Stone added that she’s not a proponent of teen sex, because “it is painful and difficult enough just to be a teenager.”