I too get aroused hearing that I'm small and I'm not tiny, but skinny as hell.
I measure 5.5" long x 4.25" around.
I have loved the cuckold fantasy for many years and a number of years ago, when I had an amicable split with a girlfriend, during an msn chat she opened up qnd told me I never made her come like other men have been able to.
I remember our first time and how loose it felt. She said a few days before we had sex, she had sex with an old fuck buddy who was black and had a thick 8 inches.
I was more aroused hearing the truth of how unsatisfied she was and also the humiliation tha shed talked to her friends and sister, all people I'd gotten to know well, and told them I had a "dick that was childlike" - her words.
I asked of their response and she said they all said "aw your poor girl" etc.
She prompted me to ask ex girlfriends and of 4 I managed to contact and chat with 2 said I was silly and size didn't matter, the other two backed her up.
One said I felt like a feather being waved around inside her, where she felt sensation occasionally.
The other who I only had one night with and we were still good friends, said it was the worst sex shed had and that she hardly felt me inside her.
These comments still arouse me greatly! I wish my wife would be so honest, she doesn't like to talk of such things :-(