Tony backed up slightly, giving them both space to calm down. He enjoyed watching as Harry licked his lips, eyes lidded heavily. Neither truly wanted to stop, but Tony was on a case and they had agreed that there’d be no sex while Tony was on a case. It ensured that Tony wouldn’t be possibly compromised by lowered energy but it sadly meant a lot of blue balls and sexual frustration. Tony often worked long hours with Gibbs until a case was solved for this reason - less temptation and quicker to get home and make up for missed opportunities.