Trick or I'll give you a Treat

Shizuo and Izaya are in an established relationship, some drama happened and they had some make up smut in the end, this is the afterwards when Shizuo decided to gave Izaya an extra "treat" for the night and a snack of "milk" for Shizuo. No crack this time, just shizaya after Halloween pun, you know you want it c: review if you want the full real story in another story -kappalord