@radiatorchains answered your ask;
He had never been a fan of being on the recieving end, especially when it came from another man. A certain set of firmly held beliefs that excused Jain to do the act wasn't extended to others. His body reacted positively to it, despite the increasing anxiety he felt with each pulsing swell. Something bad would happen, it was some sort of bait and switch, past experiences told him things would end very poorly for him if he allowed it to continue, and he found it hard to relax enough to enjoy the man of faith's oral attentions.
"You don't gotta do that,"
Even with his attention elsewhere, Miles could feel how tense the other was. Initially, he paid it no mind, merely chalking it up to skittish nerves, but as it persisted, he would open his eyes to watch the other curiously, through under his lashes. He knew he was doing a good job, so he wasn't sure what the issue might have been.
With a soft grunt, he would pull his mouth away and idly wipe at it with the back of his hand, "I don't, but I want to. Besides," He would reach a hand up to loosely wrap around Jain's cock, slowly stroking him, "what else am I supposed to do with this, hm?"