During a facial while the recipient is wearing glasses and cum gets in her eyes not by going underneath but by going overneath or over the top side of the glasses.
I gave her an overneath that stung her eyes and made them bloodshot. He assured her that it would not get into her eyes due to her glasses, much to her dismay it all went overneath.
When a woman is giving oral to two guys at the same time standing on either side of her, facing inwards. The two men's phallic appendages give the appearance of the woman having tusks which results in comedic appearance.