My lover's parents are not home today, so she invited me to her house. I got to see her sister Karen again. Karen is extremely beautiful and cute, especially with her beautiful long legs. She accidentally exposed her panties in front of me, I couldn't take my eyes off her and was caught by her. I thought she would be angry with me, but no, she also wanted to have sex with me on behalf of her sister. And she was even bolder when she wanted to have sex right next to my girlfriend!!