kiinzukaba's Things

A sudden plot came up from my mind while reading Blood link chapter 37 where Bin did not pull out from Gok. I’ve read something similar where the Seme does not pull out from the uke whenever they had sex because he was afraid that the uke might leave him while he is still asleep. So when the uke does pull it out he will be awake and the uke won’t be able to escape. This is all that I remember. I’m not even sure if I am remembering it correctly but the Seme was pretty possessive. Thank you in advance!