You give her to Clarice.

You approach Evelyn from behind and walk around her, like a farmer surveying stock. This is all for show of course, Evelyn's sweet blood is more than good enough for any vampire. You decide that the new blood deserves a treat. You take Evelyn by the hand, and lead her to the front of the room, like a father giving away his daughter at her wedding. Gwen lets go of Clarice's hand and gently pushes her forward. As if she needs the encouragement. Clarice smiles at Evelyn hungrily, then yanks down the top of the woman's dress to reveal her large breasts. She seems to like what she sees as she leans in close, her tongue and lips caressing the her pierced nipples. Then, without warning, she bites, producing a small spray of blood and a yelp from Evelyn. Clarice gulps heavily, both arms wrapped around Eveyln's waist so as to pull her closer. She moves to her neck, at which point Evelyn is beginning to droop, and they descend to the floor forming a sexy, gory mess.
"Well." Gwen says, with a short clap to draw everyone's attention. "Let's leave them to it, shall we? How about more volunteers, hm? I don't think we've had quite enough participation to let you go yet." There is quiet and stillness. You ache to spring forward and ravish the sweet blood bags, but you must admit; Gwen's set up is very entertaining. Slowly, two more hands go up. You see that Theresa, an older woman of African descent, has offered herself. She is wearing tight fitting office trousers and a shapely blouse, all of which serve to show off her well kept figure. Her long black hair is unusually wavy and frames her dark, handsome face perfectly. Someone has a good stylist. A few seats along from her is Beth, the other volunteer. She is definitely the youngest member of the managers team, younger even than the now moaning Evelyn. She is very skinny, her pale skin sprayed with a healthy amount of cute freckles. Her curly, red locks tumble down her shoulder, accentuating the girlishness of her pretty features. Today she is wearing a billowy, floral summer dress with tasteful roman sandals. Now the only problem is who to choose.