Lets you rest.

"Ok honey, I know you like being cum-filled, but we should let your system get back to normal for the rest of the day. I'll clean up the mess in the morning." Kako pulls herself from you without replacing the plug. The cum doesn't gush out like you expected it to. Instead it slowly trickles out. You bend over in front of the mirror and spread your cheeks. Not only can you confirm the slow trickle of semen from your hole, but also that your rosebud has spread to the entirety of your huge buttcleavage!

"Wow, that is soooo sexy! Your hole adapted to the stretching by expanding so your entire asscleavage is now being used to house your muscles! That's why cum isn't gushing out, your new muscles almost close your bigger hole! That makes me wonder how much you could take. Theoretically, a bigger ass will allow you to take larger objects. Well, you sleep on it, I need to calculate!" Kako rushes off before you can say another word, so you just turn in, cum leaking from your butt.