What could be better than having sex with your stepsis’ in the early morning?

This shameful story happened one night. When my younger stepsis knocked on my door. She said she was scared, and asked me to let her lie down beside me. I resisted and tried to explain that I like to rest naked, and we should not rest together, because we are stepbro and stepsis, but she was scared, and dived under my warm blanket, asking me to gently hug her. In the morning, a strong boner woke me up. I did not quite understand what’s happening and whose is this naked seductive ass lying next to me. I took out my cock and inserted it into someone’s soft pussy, and only then realized what had just happened...