why is this happening? (blue exorcist fanfic, yaoi)

chapter one+summery for book

summery:

its early morning and mephisto is making some weird concoction. he smirks as it makes a red and blue poof of smoke. he sniffs it and it smells like strawberries. he smirks evilly as he puts it into a black and blue water bottle to replace someone's. he switches them and poofs away leaving the bottle with.... 

chapter 1

3rd pov

 the bottle is left with rin who ends up sharing with shima. both finish it off and feel sleepy. the class they were released from is the last one of the day. they go back to their dorm rooms. 

rins pov next day

i feel pain. then it goes away. i open my eyes to see yukio looking worried as tar about me. i sit up and yawn. still tired. yukio says,"i had to call the school to say you, shima, bon, and i will not be going to a while. something is going on with you and shima. bon refused to leave shima but i got kunakornamro to go." i nod and get up, my tail stiff in pain. yukio helps me walk to the room where shima is leaning on some pillows. i plop on the bed beside him and say,"looks like we are going to be bored for a while." shima nods. yukio looks at me and i force a straight face with no bush while my body is yelling 'look away!' shima has a deep blush while bon says to him,"im going to get some food for our chief here to cook." yukio nods and says,"use this to get it." bon nods and heads out. yukio says,"im going to make sure the demon warding seals are in place still. ill be back." he walks out and closes the door behind him. i relax and the blush shows now as my body goes into overtime. shima says,"so, do you have any idea what happened to us?" i shake my head and say,"if it from yesterday, it would have already healed by now for me." shima nods and says,"whenever i see bon now, i feel strange. like a softness in me. i dont know what it is." i look over and say, my voice soft and quiet,"would you hate me if i said i love yukio. like more than a brother." shima shakes his head no and says,"i think im in love with bon." i say to that,"im not surprised sense you have been trying to hide your blushing around him." shima starts studdering that he does not. i laugh then feel extreme pain in my lower regain so i stop laughing and bite my lip to stop screaming. i hear rushing footsteps and the door slams open to reveil two startled boys. bon runs to shima and yukio runs to rin.

its me. sorry its so short and the shippings right now are shima x bon and yukio x rin. i have yet to see a shima and bon pairing. i have been busy and hit writers block on most of my books. the ask______ books im behind on them. later and gomen.