Sex with the babysitter of a colleague of mine

I have a single colleague aged 40. She has a 3-year-old son. A week ago, she had some much work to do and decided to stay in office after work. So, she asked me to go to her house because and take care of her son because her babysitter had called her that she cannot stay more than the usual time. I accepted to go to her house to take care of her son. When I reached her house, the babysitter was shocked to see me. She was so sexy that I couldn’t resist my temptation to have sex with her. She asked the baby to go to another room and we had sex in my colleague’s bed with her babysitter. She had a condom with her.