I'd never done anal before, but I promised my boyfriend we would if his team won, and they did. I had no choice but to ask my stepsister for help. I knew she'd had dicks in her ass before, and I needed some serious coaching. She brought the dildos, put me in position, and showed me how to relax as she shoved a butt plug in my asshole. She left it inside me while she strapped on a dildo, ready to fuck me with it. Just as things were ...
