[It takes him a moment to realise why Stark is asking him that, before he remembers that's the name he gave to his younger self. His smile covers how disappointed he is, getting confirmation that it wasn't another version and the past can't actually be changed.]
No.
[Just no.]
Not even my Ma called me James, you can call me Bucky.
no subject
No.
[Just no.]
Not even my Ma called me James, you can call me Bucky.