You are so incredibly dense.
If a guy tells you that both he and your gur knows each other so
well that she knows his penis size...would you feel comfortable
about it?
That 'fren' of yours is obviously trying to sow discord between you
and your gf. Too bad both of you fall for it.
Why? Coz no gur in their bloodly sane mind would tell other gurs
RIGHT IN THEIR that their BF knows her BRA size?
You are so naive. 