Normally, Bryan would have refused or at least came back with a smart-ass retort.
Becoming six inches tall, however, had taken some of the wind from his sails. He bit off a refusal to do the giant's bidding, seeing no value in upsetting Martin.
He got on his knees and tugged at the button, slipping it out of the button-hole in the shirt.
"Keep going," Martin urged.
Bryan was amazed at how difficult simply slipping button on a shirt from a button-hole had became for him. But, he tackled the second button, bending over and giving Martin a look at his tight, tiny ass as he did so.
Freeing the second button also gave him a good look at Martin's chest, and his little hands brushed some of the thick chest hairs covering the giant's well-formed pecs.
After getting a third button freed, Bryan sat down on the giant's chest. "Not already tired, are you, little guy?"
"I just need a moment..."
Martin easily finished unbuttoning his shirt and then threw back one side of the garment. His hand reached down and grabbed the little man.
With Bryan still in his hand, he quickly shed the shirt. Then, when he unfurled his hand, he placed the shrunken teen on his abs.
As Bryan re-oriented himself, he found himself staring toward the crotch of the giant's pants. And what he saw gave him pause. He started to turn away, but Martin's taunting voice intruded. "Don't stop now, little man."