My stepmother turns out that I masturbate with her panties

Today my stepmother made me come in his room to talk. My stepmother had found out that I was jacking off with her panties. But it was my fault for not being careful when I masturbated, I left the evidence everywhere. But then he said something unexpected. I said that I would be punished, but the strange thing about all this is that the punishment was to fuck with her. But only she could have orgasm. Should I just endure the excitement. Then, she grabbed my cock and gave me a blowjob. I have ridden as if I were a horse, and I did everything I could not to ejaculate. It was almost impossible not to do so.