Jack threw Ianto a look that attempted to convey annoyance but it was clear that they both knew the truth of the matter: Jack abhorred paperwork and only did it under complete durress. If he could get away with never having to go through another file and instead could work off monitors he'd be a happy man. He just... well, could think of other things (non-sexual thank you very much) that he could be doing. Like actually keeping Cardiff safe. There was a decided reason Jack had long ago thrown out the rule book (after drawing dirty pictures in it) and lived by his own rules.
He could consider, but he also knew it wouldn't negatively affect anything because it wasn't like Ianto could actually refuse him. So Jack had a feeling he was safe. And if not, well... it would be fun to 'convince' Ianto back to bed.
Yes, the trousers were a loss for now and Jack was exceedingly proud of himself, listening to the noises Ianto was making above him. He cheated, undoing the catch of his trousers with his hand, but drew the zip down with his teeth. While Jack knew it wasn't Ianto's way to say what was on his mind, he still liked pushing Ianto to that point of no return. That point where his voice turned deep and gravelly -- just like it was now. That was what Jack yearned for.
Ah, profanity -- Jack knew he was getting close. Zip down and... well. "Either you were planning on this for a long while, or I've been a very bad influence on you." Jack tugged Ianto's trousers open, nipping his way around the skin near his groin but not getting to where he knew Ianto wanted him. Not yet. "And here I thought you liked when I teased." As if to punctuate this, Jack wrapped his hand around the base of Ianto's cock and flicked his tongue across the slit but went no further.