Los Angeles, July 19 (TIWN) Reality star Kim Kardashian is reworking on her boyfriend Pete Davidson's diet, over fears his pizza and pasta guzzling habits could tempt her.

She has lost 9 kilos since having to fit into Marilyn Monroe's iconic birthday dress for this year's Met Gala, reports mirror.co.uk.  The reality TV star reportedly wants Davidson, who she has been dating since October, to cut out his love of junk food as she is determined to be in the best shape for her swimwear line.