Your step mom comes in your room to give you your medication. You go play with your friends and soon realize you have a massive erection and it wont go down. You run home to show your step mom and she then sees she gave you your dads viagra instead of your medication. She apologizes and knows she has to take care of this before your father gets home.She is really is turned on by your massive cock so she starts showing you her body then touching you. Soon she has your cock in her mouth and swallows every drop of your cum. She wonders if she should mix up your meds again.