>High school
>Erection at the end of class
>Everyone is leaving
>Have to go, yet my erection is just getting harder
>I stand up quickly, pull my pants forward and tuck the tip of my cock onto the waist line of my pants
>Pull my hoodie back down
>This only took about a second
>Look around
>The quiet Russian girl is standing about 1 meter from me
>She is staring at me
>I look at her for a second or two, she doesn't look me in the eyes
>I grab my stuff and leave

I think she saw my cock, sorry about that vatnik.