Oliver Haarmann

Reese Witherspoon's definitely making the most of her summer, as she was spotted while soaking up the sun in Saint-Tropez in July ... with a date to boot! Turns out, the "Legally Blonde" star's dude, Oliver Haarmann, has been in her life since last year -- and he's got a cool little past of his…

Reese Witherspoon's sailing the French Riviera this summer on a luxury yacht with her boyfriend Oliver Haarmann ... and if that doesn't sound romantic enough, check out these photos of Reese and Oliver smooching like there's no tomorrow. The actress and her financier boyfriend packed on the PDA…