Anal Training with my Step-brother

Description: I was watering my plants today with my butt plug in getting ready for my date with my boyfriend when my step-brother came in to bug me. he tickled me and my plug fell out of my ass and landed in the floor and he saw it. he was shocked to know that i had it in my ass because he has never tried anal with his gf before but i told him that it was going to be my first time too. i later found him laying on my bed with his hands down his pants. i confronted him and he tells me that he can’t stop thinking about that plug in my ass and that i would have to show him it’s still in there or he would tell our parents about my date tonight. feeling embarrassed i obliged and then offered him to help me stretch out my ass with his cock instead so we could learn together.