It's been a while, so how about a new script? I've seen some videos of "jack off" races, and I thought I'd try to implement it in SexScripts. The main problem is you need to keep mashing a button to let the script know you're still stroking. While I haven't fully tested this myself, I'm guessing simultaneous mashing and stroking will take some getting used to...
Like my other scripts, this one has an optional webcam feature where you can play against other players. It also has a race viewer mode, where you can view a "real-time" re-enactment of the race (unfortunately with only a few pics per player). If you're into e-stim, the script ends with a loud buzzer that could be used with an audio-based e-stim device to punish the loser immediately.
This version is very basic, with only the essential elements. If it works ok and there's interest, there's a lot that could be added in the future: choosing a girl to "help" you, punishments, forfeits, more players, etc. Let's see how it works first, and I'll decide later whether or not to take it any further.
In the meantime, please try it out and let me know if you run into any bugs. As a beta version, bugs are bound to exist. Enjoy!