``When you have sex, the hymen regenerates and the vagina gets blocked.'' A lie told by her brother causes her ignorant sister to go wild! I thought it would be bad if it got blocked, so I inserted my brother's dick without permission! The younger sister who knows how good she feels is so absorbed that even when her older brother says ``I'm cumming!'' and ``I'm already ejaculating inside of her!'', she doesn't even notice and continues to drive the piston!