Jammed between Daliah's legs her victim still gets too much air in Daliah's opinion... so she has no other choice than to press her hands hard at the mouth and nose of the loser! This way she perfectly prevents him from breathing anymore...!
Sexy Jessy doesn´t want to share the fresh air with her slave! So she puts her hands over his mouth and nose. Well, slaves don´t need so much air ;)
Mistress Cora knows no mercy. She bound him to the table and shut his mouth with duct tape - so she can control his breath by holding his nose in her hands. She has total control!