Stop before you orgasm
From Create Your Own Story
With great reluctance, but some sense of dignity, you pull your hand away from your crotch and place in on the steering wheel. You can't help but whine and groan as you feel what could have been the best orgasm in your life slowly melt away into nothingness. You clench your legs and whimper, brought some small comfort in the knowledge that you could at least control yourself in public.
It seems whatever mysterious karmic force in the cosmos responsible for the traffic has shown favor upon you for your selfless chastity. The traffic broke up while you were playing with yourself and now the road is clear, save for the slowpoke from earlier. You're still awfully hot, and the little show you put on earlier only made you feel hotter. Part of you wants to go to the water park more than ever now, but another part of you just wants to go home and forget this embarrassing moment. What will you do?