Bhagavatapurana 4.25.24

4.25.24

stanau vyañjita-kaiśorau sama-vṛttau nirantarau /
vastrāntena nigūhantīṃ vrīḍayā gaja-gāminīm //

24. Her breasts, like symmetrical balls, knit together indicated the advent of youth; while out of shyness, she hid them under cover of her upper garment and walked (in state) like an elephant.