The "Get Hot Challenge" or better known "Get Fuckable Challenge"

You and your roommate are...less than desirable if we are being completely honest, failing at basic hygiene practices, terrible fashion, zero physical attractiveness, and the charm of a rotten torn apart carcass (that is to say absolutely none) so you two come up with a challenge to help each other improve. You two must get so hot that you actually wanna fuck each other. How much time will that take and just how hot can you two get within the span of 2 years now that some effort is about to be put in?