Re: i have a weird question
If he ejaculated inside you, it could well be a combination of the ejaculate and your normal vaginal secretions and/or lubrication. The in and out motion injects air and kind of stirs things up a bit. Even without an ejacuation, it is common for there to be a whitish, foamy kind of substance external to the vagina. If everything else is ok, I think you are fine.