"Well done babe..you're desperate to stroke again right?
Ok, here's number 3.
However, during this video I want you to slap your cock and balls each 50 times, first your balls, than your cock. If there's some time left you can stroke slowly..I'm not so cruel LOL"
http://video.mynet.com/ofelya_10/Rihanna-SM-new-2011/1115476/
(If the link doesn't work, go and find "S&M")