Roger tfed himself into a monster first .
he activated his monster transformation.
And then, it happened.
First, Roger's hair fell out, apart from his moustache.
Then, he kicked off his boots, exposing his bare feet, which were now purple, had orange fur on the tops, and sharp green filthy toenails.
He grew a foot taller than his usual height, and muscular, splitting off his clothes and underwear.
His penis deflated and shrivelled into his body.
His arms gained more orange fur and his chest hair became a thick layer of said orange fur, as did his back hair.
His nose became a little longer, and more pointed, as had his ears.
His skin turned white, save for his hands, which turned green, with long fingers, and filthy brown fingernails.
Finally, his moustache became dark blue.
And, the tattered remains of Roger's clothes vanished out of existence.
Roger was completely transformed into a monster.
"Impressive, innit." Roger said to David.
David just grinned. Then he said, "so, who's gonna tf next?"