Let's be blunt for a moment: Alyssa Arce is precisely what the term "killer rack" is meant to convey. Her 350,000 Instagram followers surely agree with that, and while it's more than enough to make us big fans of hers, she also seems to really enjoy herself. Must be nice having a life like hers, traveling the world so that various photographers can shoot you wearing whatever designer bikini some company is paying you to wear. She does it all with a smile, too.