OK! Exclusive: Jennifer Aniston's Sexy Shopping Spree

It looks like Jennifer Aniston could be pulling out the big guns (or, at least, the tiny underwear) to aid in her pursuit of Gerard Butler — and rubbing ex John Mayer's nose in it at the same time! The star went on a major spree this afternoon, spending $1,128.53 on very sexy lingerie in a boutique just one block from John's NYC apartment.

She arrived at Only Hearts in NYC's NoLita neighborhood around 4pm with six girlfriends, including her make-up artist, Angela Levin.

"They were obviously having a girlie day out," a staffer tells OK!. "They all picked things out and chatted as they tried things on."

So who will reap the benefits of these sexy items? Jen's not telling, as the staffer says, "She wouldn't give away who she was buying them for!"

Some of Jen's purchases included (all in size small):

• 1 black silk slip, $122

• 2 "Delicious" bra and panty set in mocha, $35. One with thong, the other with boyshorts.

• 1 pair stretch lace boyshorts in green, $64.

• 1 Tuille flare wrap in dark green, $57.

• 1 Tuille camisole top and thong set, $24.

• 1 Tuille babydoll in purple, $24.

• 2 Crepe slips in black and mocha, $98 each.