Ideally what should happen after your entire family finds out that you are doing porn is,you should thank them for hearing you out,and then pick up the check at the cheesecake factory that you've bought them to and like it or not everyone should be ready move forward because you've handled it like an adult.You are an adult,and you've made an adult decision about your adult life and informed them as such....oh wait a minute ..they found out from someone else what they should have heard from you because you thought you could keep it under wraps?!In that case you are so fucked!and you so asked for it.
Let the lesson be:There is no secret porn.Go in knowing that everyone is going to know,because they will.Also be aware that,it will sound better comming from you and you will appear more responsible than you would look when this info gets leaked and it appears you were hiding it
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"I hope someone runs you over with their car."-guapo