You can feel your shape shifting again, but this time, you feel compressed. Pushed onto yourself. You watch yourself getting smaller and smaller. Incredibly weaker too. More delicate. Your penis and scrotum shrink drastically too, but at least they don't vanish as you fear. You're still male. But you ARE getting smaller and by the time it stops, Tarzan, and the world around him, looms over you. Your movements are feeble, uncoordinated and jerky. You lie on your back, incapable of doing anything than wailing pitiful cries. Your arm shows you that it's still hairy and with a simian hand. So you're still an ape, a gorilla, but what's happened to you? What did that jerk Tarzan do to you? Because the ape-man is looking at you with an awful wide smile upon his face. He really seems proud of himself and you cannot even use words anymore to ask him what he did to you or to insult him copiously. He then utters a long series of grunts and growls and a few moments later arrives a gorilla who stares down at you, his eyes full of wonder. He looks scary though, and you try in vain to move away from him. He sniffs you and much to your relief still mingled with fear, he picks you up. Delicately, as if you were the most precious thing in the world. Tarzan then speaks in a rather normal fashion.
"Boy. I am good friend. So here bitty baby for you and mate. You two be very very happy."
Boy - the gorilla holding you - grunts in deference and takes you away, nuzzling you without halt all along the way. He seems impervious to the fact that you do not want at all to be coddled. He just chuckles and finds you amusing. He then reaches a sort of den and his mate comes and greets him. Except it's no female. It's a huge muscular male! These gorillas are a same-sex couple! No wonder they needed magic to have a kid! And they've just adopted you!