Flirted for a long time! I fucked my stepsister's new boyfri

My step sister has been together with her new friends for quite a while, but whenever they were with me he flirted with me the whole time, I was never averse to it but it never happened that we were alone. But today it worked. She got a call from her boss and had to go back to work and left him with me for that long. Of course we took advantage of the time and finally fucked. cool...