Ahh... the seductive kisses of these vampire girls ! The GIRL vampire has three appetites, money, sex and blood. Money equals sex and sex equals bloodlust. It is said female vampires need at least a pint of fresh blood every month to regenerate their sexual appetites.
But the good news is vamps don't need it all at once, instead, many choose to be more discreet by nibbling on your neck during each love making session. Essentialism holds that since the female vamp's mouth is phallically endowed to penetrate, she can consume small amounts of fresh blood from the neck of each partner during love making sessions, which enables her to sustain her biological needs. So relax guys, she just wants your money, but needs a little fresh blood in a 'tasteful way' to enhance her sex drive.