Alpha Bakugou x Omega reader

They are what?!!!?

You sat in class. You kept moving around in your chair. You're belly making you barley fit in the cramped space. You were in math class working on a paper that made you want to die inside. You looked to your side and saw Kiri passing a note to Denki oh so secretly. Your interest was peaked by the secret conversation. You watched them giggling and blushing at the notes until you were brought back to reality when Mr.Aizawa told you to get back to work. 

Just when you were about to give up you heard the bell signaling lunch time. As you got up to put your things away you saw Denki put the papers in his bag. You decided then and there that you had to find out what was happening. Suddenly you were grabbed gently from behind into a hug from your alpha.

"What are you thinking about?" he said casually. "Nothing " you said with a hint of mischief. You preceded to lead your alpha with you and secretly followed Denki. You fervently found yourself at a long hallway."why ar-" bakugou spoke but you shushed him with your hand. "Shhhhhh" you spoke softly. You waddled into a nearby empty classroom and peered out the door to watch. 2 minutes go by and you see kirishima arrive and start talking to Denki. " Okay remember what I told you this ones free but next time you have to pay." Denki said somewhat seriously. " Thanks bro I really need this." Kirishima said and winked.