The reason why Simon and Brittany are together in this image is a fun, confusion

So... Do not be jealous, Alvin!

Brittany__ YOU ARE GUILTY, SIMON!

Simon__ ME?... WAIT A MOMENT, "CRYING BABY"

If we two are lost in this desert island is because the "chipmunk queen" wanted be naked for her sunbathing

Brittany (crying) __ Do not scold me! I did not know "Island Paradise" was only an auditorium.

Simon__ I can not lend my sweater, because a wild animal stole it when we was sleeping.

Brittany (sobs)