KC Chandler

The Islanders receive a text revealing it's time for the "Hearts on Fire" challenge; before the dancing begins, the boys are sent to Casa Amor, where six sexy new singles arrive to really get their pulses racing.

As the three new bombshells settle into the villa, they make their mark by wasting no time locking lips; cracks start to form in established couples and questions start flying.

Ariana Madix returns to host the messy game "Dirty the Sheets," where the Islanders put their instincts to the test in search of their perfect bedtime match; the arrival of three bombshells leaves everyone sleeping with one eye open.

Ciara Miller and Tefi Pessoa host a pie game that turns from sugary sweet to savagely sour, as some Islanders' answers prove to be a little too honest; America's vote decides the next dumping.

The Islanders head to the supermarket for the final fun challenge Check Me Out; then the stakes become real as two couples are dumped from the villa, leaving only the final four couples standing.

The villa goes head-to-head with Casa Amor in the "Temperatures Rising" game; as the heat increases, so do emotions, leaving the Islanders questioning whether their original connections can survive all the temptation.