Stepmom discovers my conversation with stepsister about sexual tips in the shower

In the shower, my stepdad\'s absence led me to seek advice from his stepdaughter. Unintentionally, my stepmom walked in, witnessing my intimate encounter with her stepsis. The tension was palpable as we continued our conversation, our bodies intertwined, exploring each other\'s desires. This marks our forbidden tryst, a secret shared only between us.