So, he made another wish. Unfortunately, unknown to him, this wish would be granted to the person nearest to him.
"I wish Both of you had huge breast and loved letting me play with them" unaware that his Wish would not be granted to himself but instead to the person closest to him, which was Sarah at the moment.
Biff Watched Tiffany as her breasts grew to Mammoth proportions, nearly the size of soccer balls. But he didn't have time to enjoy it as his chest felt... odd then out sprung breasts like hers.
"Wha...!"
"Biff! look what you did!" Tiffany yelled
"But... why... Sarah?" Biff managed to say, speachless.