well it looks like it could be on the outside, which would be a bit better on her behalf, meaning perhaps some shitty dicked individual (possibly the man underneath her) tried to ram it up there without first taking her panties off. They are obviously drunk, so its feasible. Otherwise, if it has seeped from within her vagina mine, I'm sorry to say she's got some problems. Cuz that just isn't normal colored vaginal discharge. Not even period juice. Thats just some straight up rank shit.
yes, i'm sure there will be hundreds of replies when someone finally makes the thread "petition to have i'minmyunderwear banned"