Chase is flirting with him. He'd gone from puppyish stalking in the doorway to flirting, and then that teasing flirt becomes more than just words, becomes a part of how he moves, becomes the motion of his body and how he presses close, lets House guide him. It's how he starts to get lost in the music, and in the way he's allowing himself to dance here and now. There's more emotion, more raw feeling in these past few minutes than House has seen from him in the past several weeks. This is what he'd seen in that competition tape, this kind of feeling, and it feels like a secret, like a privilege to see it now. He doesn't have to know the details to guess them, to understand that this isn't the kind of thing that people would accept openly, and that's why Chase hides it away.

Chase moves away for space to breathe and comes back in with a perfectly controlled spin, and they move together, their bodies weaving together as they pull away and come back close, like they try and fail to really pull apart. Chase is flushed, and not from the activity, not from exertion, but from the thrill of this.

Chase comes in again and he's perfectly lined up for a lift, so he lets him know, just a soft, clipped command, "Up," as he moves into position, hands at his sides supporting him through the anticipated jump and upwards as his back arches and he braces against his body, hands on his shoulders, and his cheek is pressed to Chase's slender torso as he holds him close.