While having sex with my beloved girlfriend at her house, her older sister caught us! Seeing my large member, she began to seduce me with her massive chest. I love my girlfriend, but I can't resist the advances of a woman with my ideal body type. Plus, unlike my girlfriend who insists on condoms, her sister says raw sex and creampies are okay! Even with my girlfriend nearby, the thrill of betrayal and raw pleasure makes it impossible to stop.