What you are releasing is a form of female ejeculate, and I think you will find that it is quite common, but you girls dont like to talk about it, you've not said where these are happening, on a bus in a car, or in your seat at school, college or work.
You need to control your urges more, and try to wait till you get home then enjoy them there, more private.
Good Luck
What exactly are you cleaning up? Orgasms don't usually cause a huge rush of fluids (except in men) that would necessitate a cleanup. Do you think it could be urine?