Yep, In EE the girl's breast size is always measured in numbers usually 1 - 6, although in my experience they are just as economical with the truth as our girlies over here but yes a breast nr. 3 is about 34c.
This is a great site I have used a few times in EE http://www.sex.cz/?Loc=lsf&Rnd=1291794561&Lng=2&Sex=F&STyp=4
it will give you an example of sizes. And if you like EE girls it will make you book a trip to Prague !
I did also spot on Jennifer-Sweets profile that half an hour is £60 and an hour is £90 yet an hour and a half is £170 ??? Does that mean if you book the sessions separately you save £20 ?!