You (Bryce) and your step mom have a very flirty relationship. She knows that you have a crush on her and assumes its you whos been taking her full back panties and cumming on them. One day when your dad is out you are flirting and pull down her pants as a joke. She says to be careful because if not she wouldn't be the only one with her pants pulled down. You pull down her pants a second time, and try for a third but she beats you too it and pulls down your pants down only to find that you aren't wearing nay underwear and your cock pops into her face. She cant believe that you're this hard just from thinking about her panties. She decided to let you fuck her doggy style in her granny panties. She tells you to cum on her panties but you cum inside her...oops...