Sisters fucked with each other in an awkward way

Black lesbian lady has a very unforgettable sex story in her life. She is a lesbian who is very open on her life, she searched for some other lesbian to come and joined with her as she explore the world with some new techniques and ideas on upgrading her sex life. One night when she feeks horny she called some of her friends to make out with her. Apparently there is a one girl who replied for her message but guest what it is her younger black lesbian step sister they both dont know that the girl they been messaging is one of her step sister. So they got no choice but to make out with each other.