Games That Lovers Play (1970)
A bunch of square old biddies look on, displeased, as Joanna and her dimly-lit lollipops get it on in the bed with Penny Braham and some random chap.
This ravishing brunette emerges from behind her silken sheets, wearing a big fat smile and brandishing perfectly rounded reelangers.
Have a peep at her right peak when Joanna entertains a lucky gentleman in her boudoir.
A still-topless Joanna dozes next to Penny during the closing credits. I'm sure that bed smells fresh as a daisy at this point . . .