As Ally held her now little sister she thought to herself, wondering if she should in fact turn her back just yet, she liked being the big sister for once.
As she was thinking little Kelly was staring at her sister large breasts, her nipples poking through the silk. She reached out with a chubby hand and poked her nipple.
Ally was pulled out of her thoughts by an electric shock like sensation running through her from the pressure on her incredibley sensitive nipple.
"What is it baby?" She asked, her mature mind finaly made the connection when her robe fell away a little showing off some of her impressive cleavage.
"Ah I see now" she chuckled opening her robe and holding Kelly near her breast. Quickly her little mouth found its goal and began to suckle.
At first no milk came out but after a minuet the hormones inside Ally kicked in. Her breasts inflated another side and began producing milk.
The sensation of completion washed over her as Kelly fed. She sat on the edge of the tub moaning from the sensation.
It was then that the down stairs door slammed shut.