A present.

''I know how much of a butt-slut you are and that shouldn't distract you from your missions so I got you a toy that should help with that.'' As she said this Aria took a bag from under the bed and threw it next to you. When you take the toy out of the bag it's huge and shaped roughly like a dog's cock. You see that it's inflatable and wonder how thick it can get and how full it could make your ever-hungry ass.

''You're only to remove that to replace it with another toy, a cock or to go to the toilet. Now put it in.''

As you try to take out the melting toy still lodged deep inside your ass Aria spanks you hard, leaving a red mark on your brown ass and reminding you she told you to let that melt. Now you worry if the new toy will even fit in your ass together with the old one, even your ass might not be able to hold both. When you slide the tip of the new toy in your ass pulls it further in until the knot touches your sphincter and the pleasure eases all your worries. Wanting more of that you forcefully stuff the rest of the dildo inside and give it three pumps of air so it won't slide out of you.