Add more lotion

In the evening, just before you go to bed yourself you decide to check on your sister again. Her state hasn't improved and she is still getting hardcore fucked by her imagination.

You pull her sheets down and also apply some lotion to her nipples, and asshole. You spread it with your finger, carefully slipping one finger into her asshole to also spread the lotion in there.

Your sister's body tenses up as she feels your knuckles push past her anal rim but her moaning only grows louder. Her body must be so exhausted after almost a full day of constant fucking and cumming, even if the fucking is imaginary and her pussy can't get raw.

You still have so much lotion left that you spread more of it on her body. You rub some on her soles, some on her armpits. Her body tenses up even more with the added stimulation of probably multiple cocks simultaneously in her body and greedy hands rubbing on her nipples, on her smooth soles, and on her shaved armpits.

You give her something to drink and see the dildo she used initially poing out from under her bed. You pick it up, careful to not touch much from the lotion and bring it to her face.

Between moans you push the head of the dildo between her lips, careful to spread the lotion on them. You don't push it in far because her saliva would probably wash it away quite quickly anyway.

You pull the dildo from her mouth, you notice that she had begun reedily sucking on the rubber and bring it down between her legs.

Since it already was in her pussy and her asshole was now lubed up with her juices and the lotion from where you fingered her, you decide to try to push it up her ass.

You lift her legs, giving you a better view of her holes, and line the rubber cock up with her poop chute.

It's surprisingly easy to push it in and eventually, you have the entire thing in her hole.

You put the covers back over her and leave her to sleep even though she won't get any meaningful rest tonight.