Tuck pressed his thumb up into the smooth skin behind Will's balls, and he swallowed around Will's dick, his throat tightening for a second. He pulled back, his tongue working, his thumb pressing harder, and then he tapped his hand against Will's hip. He was ready, that little tap said, for Will to fuck him as hard as he liked. He slackened his jaw, and took Will's length again, and then he left it for Will to set the pace.