On Angel? Maybe, I could see Cordy doing it in late S2/ early S3.
But even then she'd try and set up some guarantee for her safety like 'Wesley, hit him on the head and pull him off me after a little while, okay?'
It entirely depends on the Season/situation.
On Buffy? No way. Cordelia's too much of a pragmatist.
On Angel? Maybe, I could see Cordy doing it in late S2/ early S3.
But even then she'd try and set up some guarantee for her safety like 'Wesley, hit him on the head and pull him off me after a little while, okay?'
In the later Seasons of "Angel," after Cordy became a Higher Being (at which point, her blood might be even more of a cure all for whatever ails vampires, she would go so far as to get Wes' sworn promise that if the worst happened, and she were either accidentally or intentionally turned (like, maybe it was all a trick by Angelus, just pretending to be Angel) he would make sure that she never survived, and that Angelus, himself, would be dusted, as well.
OT but I love that scene. Cordy doesn't wear her heart on her sleeve but her loyalty and emotion is there when her friends need her.The part that strikes me most is the scene in 'Helpless' when Buffy asks Cordy to drive her home, and Cordy replies 'of course', as though Buffy didn't have to ask, it was just assumed.
Hmn, would 'higher being' blood cure vampirism? I mean it is pure and cleansing (probably) but I don't know if it would 'wash out' the demon or whatever.