My buddies sister is very whorish

I saw my neighbours sister and told him she was cute. five mins afterwards he's at my door with his sister. she walks right past me into the living room. all my friend says is she's very open sexually then left laughing. i went to the living room and she had all her clothes off and let me tape it. we have bang-out all the time and post are vids and pics. she's nothing sensational but is open to anything.