Caleb is showing Logan how he makes himself come.
He watched as slowly, Caleb touched himself.
"Copy me, follow my lead, your cock craves your touch. Like this." Gently it seemed, Caleb began to work his hands over his own engorged cock.
Logan mimicked each stroke; one hand moved, briefly cupped his balls, before touching first one nipple then the other.
And all the time, their gazes held.