R. Kelly’s Double Up is in stores now. Early reports say Kells is on track to sell around 400,000 the first week. Here is a bonus track that was not included on the retail version of Double Up. It’s called “Good Sex” and was produced by The Runners. Twista spits a hot verse on the track too. We love the last R. Kelly and Twista collabo, “So Sexy,” off Twista’s Kamikaze. Look out for Twista’s new album this August.