Taylor Swift celebrates Independence Day at PDA-filled beach bash with Tom Hiddleston, Blake Lively and Ryan Reynolds

Taylor Swift Hits the Beach With Tom Hiddleston at Fourth of July Party -- See the Pics!
Taylor Swift Hits the Beach With Tom Hiddleston at Fourth of July Party -- See the Pics!

In case the romantic strolls in Rome, joyful meet-the-parents moments in Nashville and England and rom-com-style beach PDA in Rhode Island didn't get the message across, let fashion make it loud and clear – Tom Hiddleston loves Taylor Swift!

The Thor actor was sporting a white "I Heart T.S." top as he frolicked in the ocean with his bikini babe during a celeb-filled Independence Day beach party in Rhode Island.

WATCH: Taylor Swift and Tom Hiddleston Can't Keep Their Hands Off Each Other During Roman Holiday

Splash News

"Tom lead Taylor down to the beach. They looked cute together," an onlooker told ET. "They were making out in the water – acting like no one was watching."

Packing on the PDA, the besotted pair were joined by pregnant Blake Lively and husband Ryan Reynolds, Gigi Hadid, Karlie Kloss and Orange is the New Black's Uzo Aduba and Ruby Rose, who was spotted kissing her new girlfriend.

As well as his fanboy white singlet, 35-year-old Hiddleston also wore his heart on his sleeve with a red heart-shaped tattoo bearing Swift's initial, while the 26-year-old "Blank Space" singer was sporting a patriotic 'America' themed bikini from Forever 21 (better get it quick ladies – the swimsuit is a bargain at $12.90 online).

Splash News

Their up close and personal ocean rendezvous comes just weeks after the smitten duo's romance was revealed as they were snapped together in the same spot, near Swift's Rhode Island mansion.

WATCH: Newly Single Calvin Harris Snaps Selfie Surrounded by Women in Cabo

While Hiddleswift, once again, couldn't get keep their hands off each other, it was fellow celebrity pair Reynolds and Lively who had onlookers gushing.

"They're so cute together!" observed a source. "She looks far along – her baby bump is pretty big! Ryan was helping her walk over some rocks to get down to the beach. He seemed to be really protective over her."

Splash News

Swift's annual Fourth of July bash has become a celebrity magnet with previous parties attended by the singer's ex Calvin Harris, Ed Sheeran, Joe Jonas, Emma Stone and Andrew Garfield.

NEWS: Taylor Swift's BFF Abigail Anderson Is Engaged – See the Sweet Pics!

As well as her famous pals, Swift was joined by childhood friends, including recently married Britany Maack and newly-engaged Abigail Anderson.

So is Hiddleswift a real thing or do the pair have other reasons for their sudden and high-profile international romance? See our theories on the pair in the video below.