Crush on my teacher

Hi guys i am 19 years old straight guy who don't mind if a guy wanna suck him & very shy who takes time to make friends but once u know me i am a crazy fun to be around i 'm new here on this site first time writing this i have a big crush on my teacher i am not in high school anymore he use to be my history teacher as i said i am very shy i can't tell him i have a crush on him and i am very confused i never felt about anybody like this i am straight i never saw a guy and got turned on i'm so confused about these feelings i think i'm just curious to know if given a chance i won't mind sucking him please help me how to tell him :)