I married an older woman and got a stepdaughter who is a high school girl only about a year older than me! I didn't want to make any mistakes, so I treated her like a child and kept my distance. But one night, she wanted me to treat her like an adult, so she stretched out and drank some alcohol, then fell asleep on my lap. Even though I knew it was wrong, I ended up touching her breasts and got a massive erection! Then my stepdaughter woke up and found my erect penis! Just as I was thinking, "It's over,"...