I Got a D in Biology

Rachel is a very strict and reserved stepmom to Kenny. When the young man gets a D in biology due to his lack of knowledge about the birds and bees, a desperate Rachel sends him to her sister Dallas for emergency education. The busty blonde is a biology professor with unorthodox teaching methods. After introducing him to the delights of the female anatomy, she gives him a fucking that answers all his questions as to how people procreate. Rachel is initially shocked when she discovers what is going on. But then Dallas and Kenny make her shake off her inhibitions and join them in a memorable threesome.