Romance Rock

Romace Rock is an object that appears in the anime series Sonic X. It is a pair of rocks located on Planet Marmolim.

Description
The Romance Rock is a pair of rocks that resemble people. It is said that if two people break the rocks together, they will be bonded together for the rest of their lives.

Metarex Saga
When Amy Rose heard of the various love spells the Marmolims were known for, she attempted to use them on her and Sonic. One of these spells involved the two of them breaking Romance Rock, though Sonic refused to do so when the rocks were presented to them and instead ran away.