Say you have a Catholic husband and wife, in communion with the Church, frequent participants in Reconciliation and Eucharist, all around devout folk, inside and out.
And they have a baby.
If Baptism cleanses us from original sin, and both parents were baptised, and if both parents were also clean of later sin by Reconciliation…
Where did the original sin for the baby come from?
Not trying to be cutesy with this question, I think that the answer will help me work out more-exactly the nature of original sin.