Our Classmates Don’t Know We’re Having Sex In Your Room v01

Have you ever seen a condom vending machine?
In my neighbourhood where I live, there are many of them,
and one cold winter night, as I saw the vending machines
shining brightly, I came up with this story.
Would it be embarrassing if someone saw you buying from a
vending machine?
What if it were the protagonist, a high school student?
How would the heroine, who has feelings for the protagonist,
feel about it?