actually gisel got boob implants according to this site http://www.newfaces.com/celebrities/gisele-bundchen.php well she is rumoured to have but if you look carefully you can see that they are rounded and filled with silicon.

tyra banks never got implants she has a natural big bust line even confirm on her tv show that they are 100% real.

Adriana Lima her boobs go with her body she has curves in the right places.

alexandra ambrosio when she models in the V.S. catologue you can see that she's wearing a ultra push up bra .