Justchillin's manga / #twincest(5)

Hot as hell ummmm yukio doms his brother and show his "younger" (time traveling older brother) what is going to happen in the future

Yukio is sick so Rin makes a schedule that has sex at certain times. What happens when Yukio breaks that schedule tho???

On a full moon Rin's demon blood causes him to go into a hightened state of arousal