Ok so I have a thing for vampire girls but movies that actually revolve around vampire girl(s) rather than vampires in general are hard to find. Here's one, even if directed by someone who trips on acid: Bitten (2008).
A stunning Erica Cox stars as Danika, a vampire girl found by a young paramedic (Jason Mewes). He decides to look after her and shelters her in his home but in order to survive she needs to suck dry at least one person a day. Things will get messy quickly.
Danika reminded me of Selene (Kate Beckinsale) from Underworld. She has a similar face, a very similar haircut, a body to kill for and shadar eyes. Such a character is good enough for me to watch a movie, even if it has fatal flaws like Bitten has.
The only feat of strength is a throat lift, unfortunately.
There's a lesbian sex scene between Erica Cox and fitness competitor Amy Lynn Grover if you like that.