The below could be answers to what your kid may ask you in future :

Son: Why is making love so enjoyable?
Father: It is just like the sensation when you are digging your
nose with your finger !!

Son: Why do women enjoy more than men ?
Father: It is because when you dig your nose, your nose feels more comfort than your finger.

Son: Why do women hate it when they get raped ?
Father: It is like when you are walking on the street, someone else come over and dig your nose, do you like it ??

Son: Why can a woman not have sex when she is in her periods?
Father: If your nose is bleeding, do you still dig it ??

Son: Why do men not like to wear condoms when they are making love ?
Father: Do you like to dig your nose with a glove on your finger.

Son: Why is making love carried out in private?
Father: Stupid! Will you dig you nose in front of your class?

Son: WOW.....father you are GREAT.