Hehe, i don't understand this joke cause my eng is bad but i found this on a joke site so...tell me BD is it funny ? xD
think about it, a 90 y/o dude is dating an 18 y/o and gets her pregnant, it relates to the hunting story because its saying like the 18 y/o is cheating on him and has someone elses baby. someone else shot the animal, so someone else inpregnated her...