Do you take a similar approach?  How do you feel about talking to your kids about these things?

I understand why many parents neglect this altogether. It's extremely difficult, especially if you're serious minded. It IS a big deal. The pressure is on. sɛҳuąƖity, relationships, reproduction is the single biggest factor in your child saving his soul or not. There is no other sin more likely to cause apostasy and eternal damnation than sins of the sixth and ninth. Think about bad marriages. How does one extricate himself from that? You have economic, family, and social ties, and even more complicated when children are involved. And who wants to live alone for the rest of their life when remarriage isn't an option?
If you can guide your children away from sins of the sixth and ninth, and you've raised them with the Catholic Faith, they are about 95% of the way to heaven.

I agree.  
Children know far more than most adults think.  Unless you've been raised in a very insular community, as Our Lady said, "There will be almost no innocent souls, no, not even among children."  I take this to mean not that all children will have succuмbed to sins against the 6th and 9th, but that their minds have already been exposed without their conscious awareness.  Whatever enters the eyes or ears is there for life, all the easier for the world, the flesh, and the devil to fan into flames later on.  Think!  If you take your year old child into a supermarket or a drug store, he rides in the little seat, and sees pictures on magazines of immodestly clad women and men.  It doesn't need to be nude or outright porn.  No, he (or she) has no interest or desire at the time, and will "forget" it, but later on, those pictures, even if not consciously recalled, can be used by the enemy when puberty arrives.  

So is the solution to live off grid in total isolation or to join a bizarre cult?  No, of course not.  It is to maintain an open, honest, caring relationship in which children feel, even when they've done wrong or are in their adolescent years, that they can come to you at all times, with all questions, in any circuмstance, and be heard, given wise counsel, and that even punishments are backed by your love.

Children who cannot do this WILL fall into mortal sin, if not impurity, then something else, leading to impurity.  Children so unfortunate to be raised in groups like certain Amish, Hasidic Jєωιѕн, the polygamist Mormons, on ashrams, upon leaving and "discovering" sɛҳuąƖity as accepted by the majority, nearly all cast off every restraint.  Satan loves ignorance.

The solution is also not to deliberately expose them to perversion and then tell them it's evil!  Satan loves miseducation, as well.  (This is why school based sex-ed, anti-drug, anti-alcohol, anti-bullying programs don't work; no, not even if done in traditional Catholic schools.)  I heard an SSPX school, not sure where, had some sort of class for high schoolers.

Dad, you did the right thing!  Teach according to each child's understanding, temperament, and as circuмstances require.  Teach by you and your wife's Godly example.  Do this and when your son encounters the wrong thing, his conscience will already be formed to reject it.  If he's tempted, he'll know how to pray because you've already taught him.  He needn't know why he prays the three Hail Mary's or calls upon St. Joseph, model of purity, or girls, to St. Agnes.  But when the need arises, the graces given at Baptism, by regular confession and Holy Communion, by Confirmation just before the onset of puberty, if at all possible, will enliven his heart and mind by the Holy Ghost.  He will will not merely avoid the sin, (remember, willfully indulging in mental impurity is mortally sinful, not just the act), but achieve mastery over his lower nature.

Add my comments to the "Things I Wish My Parents Told Me" list and sign me "Penitent." 

The only thing I would add is that since the OP appears to be the mother of the little boy, it might have been a more comfortable conversation had it been between father and son.  Especially as the boy gets older there may be other questions that arise that he might prefer to talk to his father about.

Quote from: Anonymous
Dad, you did the right thing! 

It was my impression that the OP was the mother. I agree she has done well in her approach to the matter and to her answers.
It would be better if the Dad would handle these issues, but maybe Mum is more approachable seeing  the "spouse thought I went too far in my description" which might mean the child knows that his mother is more frank and open (in accordance with the child's age) and senses his father's more reticent nature.

I suggest, as the boy is becoming more mature, she could ease her husband into a more active role.

"The Talk" should be given by the parent of the same sex. period.
If Dad can't/won't do it then Mom should get grandpa or an uncle to do it but DAD
should be the one.  Dad will pay for shirking his responsibility.
If any mother has the prayer book "Mother Love" from the Christian Mothers
Archconfraternity (edition prior to 1965) The Talk is covered in there.

Fathers wouldn't/shouldn't give The Talk to daughters so why would anyone think it OK
for Mothers to instruct boys?