What I think you are saying is that you wiped cum off yourself first and then used the same cum saturated cloth to wipe her vagina so if that is what you are saying, you may have actually deposited some still live sperm onto her lips or vaginal entrance. And in that case, there is a slight chance of her getting pregnant.
If you were just masturbating and never inside her, I don't see the need to wipe her unless you aimed the spray at her, which is a bad idea unless she is on the pill, or some other kind of birth control.
I am guessing that you chose not to use condoms and rely on pulling out in time to ejaculate outside her. this is tricky, because the precum that beads up on the head before you enter her has enough sperm in it to get her pregnant. Unless of course she is on birth control.
So at this point, she should be taking the emergency morning after birth control pill. She may want to make a trip to planned Pregnancy which makes such things available to teens and the hippa laws make it confidential so parents won't know. But I'd talk to her to get it there tomorrow. She needs to also be put on birth control is she isn't pregnant. [ Dragonflymagic's advice column | Ask Dragonflymagic A Question ]
Attention: NOTHING on this site may be reproduced in any fashion whatsoever without explicit consent (in writing) of the owner of said material, unless otherwise stated on the page where the content originated. Search engines are free to index and cache our content. Users who post their account names or personal information in their questions have no expectation of privacy beyond that point for anything they disclose. Questions are otherwise considered anonymous to the general public.