Using the straps on her bed.

When you hear the shower turn off again you go upstairs, entering her bathroom just as she finishes drying off. (There are no locks on the doors, naturally. Well, none that you don't have the key for.) Blushing a little she starts to wrap the towel around her but you gently take it from her, leaving her naked. She can't quite decide between trying to cover herself with her hands and trying to be nonchalant about it, which is quite adorable.

"There will be no need for that. You have to learn to be comfortable being naked."

She blushes again and nods.

"Now, let's get you to bed."

You take her hand and lead her into her bedroom, pulling the covers all the way down and nodding for her to get into bed. She hesitates, looking towards the wardrobe, then self-consciously lies down naked.

"There are a few more things you need to get used to. Like these."

You sit down beside her on the bed and take one of the padded straps tied to the posts of her bed. She looks nervous so you use your kindest voice to calm her down.

"Being comfortable with being tied up is an important part of being a good pet, and you do want to be a good pet for your mother, don't you? I know you do. Remember that it's just you and me here so there's no way you're going to get hurt. Alright?"

She nods hesitantly, slowly stretching her hand out towards the waiting leather strap.

You fasten it securely around her wrist, making sure it's not too tight. You kiss her and tell her she's being a very good girl before continuing with the other three, talking to her in a calm voice through the whole procedure. Once she's tied down spread-eagle on the bed you take the chance to study her body for a little while, caressing her youthful curves with your gaze - long, slim legs, nicely curved hips, taut tummy, small but pert breasts, delicate fingers, pronounced pubic mound with its small patch of darkish blonde hair... All yours.

"A-auntie Gina? Is... is something wrong?"

You shake your head smiling to yourself, then pull the covers up over her and lean down to give her a soft kiss.

"I'll leave this here, if you need anything during the night or if you get scared."

You put a baby monitor on her bedstand, showing her that you're taking the receiver with you.

"Sleep tight. I'll wake you in time for breakfast."

"G-good night, auntie Gina." Emily's voice trembles a little as she answers.

You turn off the lights, close the door, and leave.