Maybe she'll just keep going until she can mold whatever sludge of self and thought is left over into the perfect and needy little sister she knows you can be deep down, till there's nothing left to even consider questioning it.

Whether or not she was your big sister before or after you started really isn't important, and to be clear, you don't get to decide that. She's going to play with you until all you can think about is servicing her hot body, whatever shape she decides to be today.

She'll let you sniff them and maybe lick them but only if you make her giggle from debasing yourself for her. She wants to hear you be reeeeeally pathetic and then maybe she'll deign to let you touch her.