Solely your blame
Jack was looking out over the city when he suddenly felt arms around his waist.
'Hi Ianto,' he called softly.
'Hmm, Jack,' Ianto hummed back.
'Hard day?'
'Yeah, very hard.' The three words were punctuated by a slight thrust of hips. Jack could feel Ianto's erection, but purposely ignored it. For now.
'Jack!' Ianto whined in his adorable Welsh accent.
'Yes?' Jack replied innocently.
Ianto huffed and thrust against Jack arse again only this time harder.
'I want you.' He breathed in Jack's ear and proceeded to lavish said ear with nips and licks.
'Hmm' and a low groan was all the reply he got. He moved down Jack's neck and softly bit into the curve between neck and shoulder which earned him another groan and a lot of panting. Apparently this was something Jack very much enjoyed.
And Jack wasn't the only one enjoying himself, Ianto was steadily thrusting faster and harder, while one of his hands slipped down Jack's torso to pop the button on his trousers and slowly unzip his fly. His other hand was busy tweaking and pinching one of Jack's nipples.
Jack himself had one hand twined in Ianto's hair and the other on his arse to encourage thrusting.
This was getting good they thought to themselves.
Suddenly there was a shout and a flash of light. They flew apart with twin shouts of shit and started running away and back to the Hub.
After arrival and much panting Jack managed to choke out; 'Ianto,' he said, 'I blame this solely on you! Getting me all hot and bothered in public like that!'
'Well, I didn't hear you complaining!' Ianto replied.
'Let's take this "argument" to a bedroom shall we?'