brusto

Brusto is the front of the torso, the ribcage and everything the shirt covers - the chest of a man, a woman or a robin. It is anatomical rather than coy. The mammary gland is mamo, a separate root, and keeping the two apart saves a good deal of confusion. Note the habit Esperanto shares with French here: with body parts the definite article usually does the work of a possessive, so li metis la manon sur la bruston needs no sian unless you want the emphasis.