Derek could smell the sharp scent of salt--tears, probably. But no cause for concern. Since that first awkward time when Isaac had cried, it'd happened since--good tears, Isaac had promised. The boy was so sensitive that sometimes when he got what he needed he was overwhelmed.
He thrust in harder, gripped the boy's hips, angled them sharply to hit the boy's prostate.
"Take it," he grit out. He bit and sucked at the boy's neck. "Know you like it. Can you come like this? Come just from my cock buried inside your slutty hole? Want to feel you come, Isaac....your hole gets so tight."