I can't with the "sex at the infirmary" trope in most yaoi manga. Does that happen in real...

I can't with the "sex at the infirmary" trope in most yaoi manga. Does that happen in real life? How on Earth are students able to do that? Haha. Imagine the creaking sounds, moans and shadows behind the curtain or divider. In this manga they even removed all their clothes except socks and did various positions. Haha. They went till the end there. In other manga they usually still have most of their clothes on and just kiss, give HJ, BJ or jerk each other off. They even had pillow talk here. They turned the infirmary into their love nest. Haha.

"It's the BL trope where everyone becomes a couple at the same time." Okay, the mangaka was just trolling everyone by this part. ┑(￣Д ￣)┍