When I went to my girlfriend's house to play and had sex with her, a beautiful woman looked at me! Oh no, my sister saw me! I'll get in trouble! But then, for some reason, she started seducing me one after another! I like my girlfriend, but when a woman like this seduces me, I can't help but let her do what she wants, even though I feel guilty! Her technique is better than my girlfriend, and it feels so good that we fuck in earnest over and over again! I don't want to be found out, but I'm so excited about this relationship that I can't stop!