Serge Tuganov, 28, of Moscow, accepted a $4000+ bet from two women that he couldn't handle a 12-hour sex marathon with them. According to KTLA News, he won by downing a bottle of viagra. But right after the orgy, he died of a heart attack. No info on how many pills might in a "bottle." In fact, not much info in general. "Man Dies After 12 Hour Viagra Fueled Orgy" (Thanks, Derek Bledsoe!)
Addenda:
Death by Snoo Snoo!
Well, of course he died. What else do you do with your life after you win a $4,000 bet by having sex with two women for 12 hours? Nothing! That's it, you're done. YOU WIN.