Role play for couples (any ideas?)

i'm thinking of doing some roleplay with my partner but not sure what and how to proceed

list of ideas at the moment:

employer - job applicant
(an interview that gone from needy to desperate)

doctor - nurse
(a body check that had gone terribly wrong)

a plumber - sex-starved housewife
(you got the picture)

and............. i run out of ideas!

any input will be appreciated thankyou!:smthumbup::D:p