You are in isolation with your hot big step-sister and she peer pressures you into sniffing aroma. While you are sniffing the aroma you start to have visual sexual fantasies of your big step-sister dirty talking you and flaunting her breasts and ass... after the trip fades you snap back into reality and your unaware step-sister, amused by your odd behaviour gives you more... only for the fantasy to get dirtier and sexier... finally after the last sniff it is revealed that while you were tripping out you did something that shocks your step-sister...