I too spotted this independant low budget title at the country's ultimate video resource TLA Video and always wanted to rent, but my account ran out and the last 12 times I've checked, it was missing, possibly sold. It was displayed next to their Russ Meyer Sexploitation center (all those titles I did indeed rent) and next to a worn copy of Double Agent 73.
In FYBO, however, according to the synopsis on the yellowing Box, like Double Agent 73, Anne Marie plays a huge breasted CIA agent pursued by a bumbling pair of KGB agents (the flick was produced in '82 during all that cold wat hysteria) apparently she uses her outrageous anatomy to overwhelm the bumbling duo. Looked really cheap at the time, and now may be the Holy Grail of boob flicks.
-Peace.