In The Sun Also Rises, do Brett and Cohn actually sleep together?

Question

Or do they just go to San Sebastian as friends? and Cohn is obsessed with her for no real reason?

Answer 1

I'm pretty sure Cohn did sleep with Brett.  That's why he follows her around all throughout the festival later on and gets so upset when he finds her in bed with Romero.  He represents the pre-war generation and still believes in things like civility so he's shocked when he figures out Brett is sleeping with Romero.

Answer 2

If I remember right Brett spends her time on top of bullfighters.  I can't recall even implications that she was sleeping with Cohn.