Katsuki and Izuku both screamed in horror and disgust, seeing duplicates of themselves kissing... Ochako stood beside them, her jaw dropped, and her face overflowing with horror... Todoroki was boiling a tea pot full of water in the background, so he could pour it on the duplicates...

Izuku:"AHH! NO, NO, NO!"

Katsuki: throwing up in a corner

Ochako: frozen in shock...

Todoroki: boiling water.