Re:hahaha awesome dude!

To some small degree I probably swallow a small amout with it being so close to the mouth. As for getting fluid on the lips....if your doing it right i.e. making her very happy it would be difficult not to let fluids touch your lips!....

I have been doing some research on the compositon of vaginal fluids and it seems that vagina fluids are slightly acidic. Perhaps the acidic nature just helped break down the skin without me knowing or perhaps thinned it much like the enzymes in saliva thin the  hard skin.