Jennifer Lopez Wears A 'Ben' Affleck Necklace During Sexy Saint-Tropez Vacation With Ex-Fiancé-Turned-Boyfriend

Jennifer Lopez wants the entire world – including relentless paparazzi with mega-zoom cameras – to know that Ben Affleck is her man.

After first making their relationship Instagram official with a photo of their steamy make-out session, photographers caught the Gone Girl star with his hand on J.Lo's famous booty.

Then on Monday, Lopez was photographed sporting Affleck's first name around her neck.

Though dainty, the necklace – containing a B charm, an E charm, an N charm and a heart – was on full display, as Jennifer kept the rest of her ensemble clean and simple for her day of shopping in Monaco.

She paired her statement-making jewelry with a tan fedora hat, matching sandals and a white sundress.

But that's not the only jewelry J.Lo has sported on her posh vacation that's made headlines!

Lopez also showed off a giant emerald sparkler on her ring finger, just three months after rekindling her romance with Affleck following her breakup with ex-fiancé Alex Rodriguez.

As RadarOnline.com previously reported, Bennifer is said to have flown into the French Riviera on a Bombardier Global 7500 – a private jet worth $200,000 – for a romantic getaway to celebrate the pop star's birthday.

They even rented a $130 million luxury mega-yacht...because they can.

Interestingly enough, so can A-Rod! And he did just that.

On Friday, the ex-Yankee was seen sliding into the single life aboard a nearby mega-yacht of his own, showering and canoodling with a gaggle of bikini-clad women.