A memorable first time

One day a father tells his son "You're 18 now, and I think it's time you learned about the birds and the bees, so take this duck and go over to this brothel and see what you can do."

Slightly confused, the son heads over to the brothel with the duck and meets with one of the women there. The son explained the situation to the lady and told her that even though he has no money, he does have this duck. The woman thinks for a while, and decides to take the duck as payment since she knew a guy that could help her prepare the duck so that she could cook it for dinner.

So after they have sex, the woman is flabbergasted at just how magnificent the son was in bed. She even offered him a freebie but being the polite guy that he is, he refused. So the woman, desperate for another round, offered the duck back as payment, the son agrees and so they have sex again.
Later, the son leaves the brothel with the duck. On their way back home a truck appears, seemingly out of nowhere, and hits the duck, killing it. Feeling bad, the driver offers to pay the son for the duck. Not knowing how much it was worth the son settles for $20. The driver happily obliges, pays him the $20, and they both go on their ways.

Finally the son gets home when his dad asks him "So son, how was it?" The son replies "I dunno dad, you tell me." "Ok, so tell me what happened" replied the dad. The son replied "Well dad, I got a fuck for a duck, a duck for a fuck, and 20 bucks for a fucked up duck."