He smiles, when Tony agrees by kissing him softly on the cheek. It's a really nice moment.

There's a lot of reasons why, though, that nice moment gets overtaken by a lot more kissing, and in ways that are a lot less chaste. While Steve isn't ready to go fast, he certainly doesn't want Tony to get the impression that he not interested in going at all. In fact, some days it's hard for Steve to actually process exactly how attracted to Tony he really is, because despite his commitment to this, his mind is still adjusting to the idea of it all — that this is okay, that being with Tony is okay — even if it feels like his body is miles ahead in understanding what it wants.

When he hears that near-whisper against his lips, Steve doesn't say anything in response. Instead, after five seconds or so Steve slowly starts to pull back, so he doesn't have Tony pinned against anything anymore, and so he can wrap his arms around Tony's waist and shoulders.

"You can really be the perfect gentleman, you know that?" he asks, his voice hushed as he pulls Tony in for another soft kiss. But the movement doesn't stop there. It's slow, but deliberate, the way Steve start to moves them, one step and kiss at a time, closer to the bed. Because he did say he wants to see how this feels, and it's not like he's going to be able to stop himself from wanting to kiss Tony simply because they're laying down on a bed, instead of standing up.

So yeah, in a way, it's a little scary. Another first of many future firsts. But Steve wants to try this. He knows he does.