It doesn't stop her glaring at him for it. Seras sets her shoulders and attempts to step out after the other vampire and surprise covers her face again as that one step buoys her out further than she expected, even with the remembering footage of moon landings from the telly. Her arms flail a little until her foot hits rock again and she balances on the point of her foot, rather like a ballerina.

Then she looks around and up and looks suddenly delighted because it's beautiful out here, with the earth looming close by. Even Jan's presence can't ruin that moment of realisation.

She's really here, out on the moon! And the small doubt that her vampire powers wouldn't protect her is swept away in the moment too.