After summer vacation started, my younger sister played games at home every day, ignoring whether Mom was around or not. She deliberately...

After summer vacation started, my younger sister played games at home every day, ignoring whether Mom was around or not. She deliberately exposed her vulva to seduce her older brother. When he didn't react, she turned her back to Mom and shoved his penis into her mouth. He got hard in no time and couldn't wait to penetrate her. In the end, she ejaculated inside him while her vulva was inside her. See the post below for the full (uncensored) version!