Sounds as though Lydia may have been reading a lot of vampire romance fiction, but David doesn't appear to be a fan.
Elmwych Comic P.04
Panel 1: David is trying to hold Lydia at arms length as she attempts to kiss him.
David: Lydia, please! We have important work to do!
Lydia: I'll be your vampire David!
Panel 2: Lydia leaps up onto David and he begins to fall backwards.
Lydia: Slay me as hard as you can! Show no mercy! Let my dying screams tear the veil of night!
David: EAARGH!
Panel 3: David is now flat on his back on the vault slab, with Lydia on top of him.
Lydia: I'm trapped in your deadly embrace mighty slayer! Finish me off quickly!
David: I'm not going to slay you Lydia!
Panel 4: Closer in on the two of them. The background is no longer visible.
Lydia: But why? Don't you like me David?
David: You're er... very sweet but we really ought to be...
... doing the, erm,
Panel 5: Close up on both of their faces in profile, Lydia above David.
Lydia: David Errant! Is that a great big steak in your pocket?!
David: Oh!