Your step-moms friend just picked you up from the airport & you thought you could hold it for the ride home but the traffic is worse than normal because of construction. You're starting to struggle and she notices, encouraging you to hold on. she's trying to get off the hwy as fast as possible (not fast) and your tummy rumbling is getting worse. She tells you to grab a towel from the backseat to put under you in case you start leaking. She notices when you start spurting into your pants. she assures you she won't tell anyone and your leaking secret is safe. You start farting in the car & her reactions are hilarious.  She keeps giving you lots of holding encouragement and is so nice about it. You can't hold it and you totally wet and then loudly mess your pants in the car! she's pretty horrified and decides she should probably call your step-mom