hows everyone doing? Well, heres my question.

I'm a 19 year old male and I am engaged to my lovely fiance who is 18.

One night we were having sex in the back seat of my car, well we were getting into the foreplay and I started fingering her. I went down and started to do a little oral sex and it tasted a bit funny. kind of sour, tho I didn't want to ruin the mood so I kind of just stopped without saying anything and started to finger her a bit more while doing oral.

Well, it was dark and we really couldn't see anything. After I got done fingering her, I did the whole slowing licking the fingers kind of thing to excite her a bit more, and when I did so, there was this creamy kind of sour tasting stuff on my fingers, haha, well I took it like a man and didnt say anything and continued on with the sex.

Now a couple days later (i did mention this to her also when we were done) I took her to the movies and we was getting kind of excited and kinda new what was coming next. So I told her to go check herself because of the last time. Well she said it was there, whatever it was. I know its not a yeast infection or being dirty ect... so is there some kind of explanation to what it is or what? It seems to only show when she gets horny or wet or something i dont know.

Appreciate you girls for talking.