During a swingers party, Marcia watched her step-sister suck her husbands cock, while doing so, Marcia took her sisters bare foot and used her toes to fuck herself and then she noticed how pretty her sisters ass was. She pulled her as cheeks apart and tongue fucked and licked her sisters pretty hole till she came several times. She loves eating ass and why not eat out her own step-sister while the husbands watched!!