What did Steve do when Tony try to bite him? I'm thinking tying him up, teasing him, and denying him. That's how you break someone like Tony, I think the restraints would definitely be very breaking for someone like him.
I can see it now, Tony being kept in a glided cage, cut off from the world. The room is always warm and the carpet is thick, which is good, because he's almost always naked, and on his knees, because his wrists and his ankles are strapped, in soft strong leather. Throughout this timeline, Tony is gradually cut off from the world, until all he has is Steve, and he watches Steve gets further and further from the Captain America he grew up learning about.
Tony watches the boyscout get angry, have a fight with Sharon and threatens to shoot her the way he shot Bucky. He scurry out of the way and try to hide behind the sofa, but Steve drags him out, thrashing futilely as Steve closes around him, holds him close and rocks him like a doll. Steve sometimes rant, sometimes murmurs, sometimes sob, and Tony does nothing because he's bound and gagged.
This needs smut, lots of smut?
I can see it now, Tony being kept in a glided cage, cut off from the world. The room is always warm and the carpet is thick, which is good, because he's almost always naked, and on his knees, because his wrists and his ankles are strapped, in soft strong leather. Throughout this timeline, Tony is gradually cut off from the world, until all he has is Steve, and he watches Steve gets further and further from the Captain America he grew up learning about.
Tony watches the boyscout get angry, have a fight with Sharon and threatens to shoot her the way he shot Bucky. He scurry out of the way and try to hide behind the sofa, but Steve drags him out, thrashing futilely as Steve closes around him, holds him close and rocks him like a doll. Steve sometimes rant, sometimes murmurs, sometimes sob, and Tony does nothing because he's bound and gagged.