Girls should become fat (as long as they stay healthy) BECAUSE FAT GIRLS ARE STRONG!!! I am A TALL SKINNY GUY. I once encountered A SHORT FAT GIRL who stood A SHORT, SQUAT 4-FOOT-10 but she weighed A MASSIVE 257 POUNDS!!! I stood A TALL, TOWERING 6-FOOT-1 but I weighed A MEASLY 125 POUNDS!!! She EASILY bench pressed 175 pounds in 15 reps (THAT'S FIFTEEN TIMES!!!) I knew that if she really wanted to, SHE COULD PICK ME UP AND THROW ME!!! Her arms WERE LIKE BOULDERS while my arms WERE LIKE TWIGS!!!
It depends on whether the girl wants to be fat or not. Personally I don't mind about a girls size. It's up to you