Knowing you (слэш)

A little epilogue-ish NSFW follow up to 'Meeting you', that can be read as stand alone, for the plot is a minor aspect here.
During a post mission routine with all the new and old residents of the Avengers-tower present, Wanda, Sam and Clint bring up an infamous article about the heroes being 'Alphas' in the streets, but probably let their partner take the lead, when it comes down to doing the do...
Since getting together the relationship of James and Tony had stayed rather chaste on that territory for various reasons. Mainly since James' last experiences hadn't been pleasant ones and Tony is well aware of that, so what happens when new desire grows and old fears are pushed aside in a wave of bravery for just one little moment? Would he be able to let himself fall? Would Tony be willing to catch him?