While riding your partner doggy style, stick your thumb in your mouth to get it wet, then stick it in her ass. It's like strapping your one hand to the saddle while riding a bull, so don't forget to hold your other hand up and wave it around....
It was all I could to not get bucked off after I popped my Little Wet Thumb up my wife's ass as I did her doggy style
by silicone sister July 11, 2010