Confirmed it with Rick, and it was him. he gives these words, and mentions it was 1965. My how time flies.

There were two ladies of ill repute
one was ugly the other was cute
the cute one worked all the time with a will
but the ugly one gave green stamps with her bill

green stamps was all she gave
green stamps was all I got
green stamps was all she gave
then I went to the cute one and cashed in the lot