Learning about Condoms

Father and his 13 year old son walk into the pharmacy.
The son sees the boxes of condoms and asks:
-What are these dad?
And the father answers truthfully:
- These, my boy, are called condoms.
Men use them to have safe sex.
- Oh... i see! the boy answers. They shown them to us
at school, in the sex education class.
Then the boy looks at a packet with 3 condoms in it and asks:
- Why does this one have only 3 in it dad?
- This, son is for high-school kids:
One for Friday, one for Saturday and one for Sunday.
Then the boy looks at another packet that has 6 inside.
- What about this one? Why does it have 6 in?
- This is for college students:
Two for Friday, two for Saturday and two for Sunday.
Then the kid sees that packet with 12 inside and with great wonder asks:
- And this one dad, with 12 inside?
His father sighs and explains to him:
- These my boy, are for married people.
One for January, one for February....

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