As you make your way across the college campus, you notice that for some reason, your penis has been aching itself into an erection, but thankfully, your pants fit well enough to prevent a noticeable tent to form. Ever since you had that protein drink, you felt arousal increasing inside of you. You really hoped it wasn't some sort of allergic reaction of some sort.
While it wasn't a lecture hall, you were thankful that the class big enough so that you could find an ideal desk to avoid the most amount of eye contact from your peers and the teacher. Just as you find a nice isolated seat in the back, with Kate curiously following you to the one next to it, Miss Stillglass enters, eyeing you with a slightly frustrated gaze as you diverted from the desk you normally sat at. Kate looked like she wanted to talk to you, but was cut off in her attempt at the teacher's immediate start on the lesson.
The next two hours were excruciating as you struggled to keep your composure against your now fully erect cock and the lesson at hand. Miss Stillglass was fortunately paying more attention to the chapter she was explaining while Kate seemed to have misinterpreted your squirms, thinking you were in some sort of pain.
As the final minuted tick away, you initially thought it would get better if you were busy taking notes, but now you were just begging the clock to go faster. You stifle a whimper as you can barely hold it in now when suddenly a quick announcement on the campus' PA system interrupted the class, its loud pinging noise allowing you to muffle a moan in your hand as your cum into your pants. Thankfully, both Miss Stillglass and the rest of the class, including Kate, were preoccupied by the overly loud announcement about several campus events being cancelled. You sigh in relief as the announcement also cut into the last minute of class, allowing you to quickly pack your school supplies and leave, rushing out the door first and leaving a confused Kate behind.
It was only after you rushed into the bathroom and an empty stall that you noticed that your cum had a vague smell of vanilla and bananas, not unlike the protein drink you had. You hope and pray that nobody in the classroom smelled your ejaculation, and if they did, hopefully the smell masked the semen stench.
You sigh at the fact that the damage was already done and proceed to clean the gooey mess from your underwear. Thankfully, it didn't leak out onto your pants, so no noticeable stains got through. Weirder still, you notice that despite it being from your cum, the smell was oddly pleasant, distinctly reminding you of delightful taste of that protein drink, Eric and Luke, and your own semen.
The last thoughts were a bit strange though, and you try to shake them out of your head before slipping on your stained, but manageable briefs. It wasn't as unpleasant as you thought it was, if not actually really comfortable. But soon you were back outside, surprisingly with Kate there waiting for you to walk together to both your next class.