Porn , where would we be without it? I think its a good thing to let them see it providing its normal porn and not any of that sick stuff .
My friend came round a few weeks ago and the kids were playing and talking about different things and my mate said this is the most liberal house that hes been to . i felt quite proud!
So yes let them watch it , give them a talk to reasure them its ok but to avoid certain things as it will do harm