any response i might make was interrupted when a nurse came and discovered i was conscious . she must have read his mind , because she lifted up onto her tiptoes at the same time he lowered his mouth to hers . it had melted right where it stood , like it had been exposed to some terrible heat . `` thank you , '' i told him softly , closing my eyes . you will know it when you feel your shoe bump its lip . `` i 'm not sure what we 're doing , but you 're making me nervous . '' 