I last longer havin sex in btwn my gf female chest appendage than her vagina is that normal, what can I do to last that long?

You mean her breasts? "Titty f***ing" as it's called doesn't give as much friction or sensation to the wenis which probably explains why you last longer when doing it that way. A simple way to last longer during intercourse is to wear a condom. If that's not possible you can use a lidocaine-based erection spray that will delay orgasm.