It happens almost on Jack's word - just a few seconds later, really. Poison jerks against the ties, against Jack's grip, and his body tries to curl forward like he can catch the feeling as it happens. He comes, making a mess between them as he goes tight around Jack.

Poison closes his eyes tightly, letting the stars explode in his head, all over him, as that delicious feeling spreads from his core to his fingertips. "Holy shit," he sighs, breathless, suddenly boneless in Jack's arms.