First of all, if somebody, anybody . . . male, female or otherwise . . . is standing face-forward to you with her arms down at her sides and her legs spread like that, she (or he, or it . . .) is ludicrously unlikely to be a threat.However, if you do feel threatened by somebody facing you in that way, don't worry about grabbing the breasts. Just kick it in the crotch and/or punch it in the head until it falls down. Boob-grabbing should be considered only for entertainment purposes, not self defense. ;)