[Having Kitty on his side definitely helps, even if his emotions are running sky high with everything that's wrong about this situation and the way Ianto is clearly taking in everything and storing it away to use against him. It's even more disturbing because the first part is what Ianto always does, it's just that it's not normally him he uses it against.
And he knows he's in danger of losing it simply because this is so fucking personal to him, and so he starts singing to himself under his breath as he steers Ianto into the bedroom.]
[It helps a little, enough that when Ianto asks now what he's able to regard Ianto with a slightly cooler stare as he guides him to the bed. He'd really rather not have Ianto chained to the bed because it's too evocative of other occasions, but the bed's the heaviest thing in the room and thus the safest anchor point.]
Sit. [Pointing up towards the top of the bed, where this Ianto who's never been in here before will note that the headboard is usefully formed of strong, metal bars.
He glances at Kitty, with a vaguely amused twist of his lips.] You might want to avert your eyes. [Because he's pulling out the drawer under the bed and it has a lot of toys in it, many of them extremely graphic. Jack goes straight for the handcuffs. No cosy, fur-lined cuffs for you tonight, Ianto. He wants this to be uncomfortable.]