Follow up to GFE Armpit Fetish! Your GF brings up that she loved when you shared your fetishes with her the last time you guys had sex, and now she says she has a secret fetish to share with you... but it's a little odd and she's apprehensive about telling you. Yo convince her to tell you about it and she confesses that she loves to be called "step-mommy" during sex. You tell her that you're open to trying it and you call her step-mommy while she sucks and fucks you all the while her telling you what a good boy your are. Ends with a creampie!
