Shannon Tweed nude seen in various sex scenes. First Shannon Tweed sitting on and leaning over a car in a parking garage as a guy has sex with her, pulling off her black bra to reveal her large breasts, which he puts his head between. Then Shannon Tweed fully nude, showing us her breasts and a bit of bush as she has sex with a guy doggy-style over the edge of a pool table, and then rides him on top of it. From Body Chemistry 4: Full Exposure.