Sulu was glad when Ianto paused; he needed the moment to remember how to breathe. It wasn't always comfortable, doing this, but that didn't mean he didn't enjoy it; especially when it was Ianto. He went so far as to sit back against Ianto's thighs, pushing down against him even more, groaning under his breath. When Ianto's hands found his hips, he moved willingly upwards, his hands grasping Ianto's shoulders, bucking down against him as he thrust upwards. "Jeeze, Ianto, God..."