Pretend to be boyfriend to fuck her

Spying and peeping on this gorgeous nudist girl made me think of a plan. Since she was sunbathing with her face covered, maybe it would be possible to sneakily fuck her. I'd just pretend I'm her boyfriend and I'd fuck her without letting her take that towel away. Her pussy and open asshole both look tempting. I know it's a stupid plan but I can't come up with anything better at the moment.