Does Skylark swallow quickly enough?

Yes, until you decide to add something else

Surprisingly, Skylark does well to continue to swallow the heinous liquid while her breasts are thoroughly ravaged by the lash of your rod. Despite her previous punishments, Skylark's breasts are large enough to offer ample places for new welts and bruises. The erotic scene in front of you causes your hardened cock to strain against your pants as you continue to paint Skylark's flesh with red marks.

You gesture to Bethany, who immediately understands what you mean. She drops to her knees in front of you and unzips your pants, causing your dick to flop out to her waiting mouth. Bethany throats your cock as you continue Skylark's training. It does not take long for you to feel the urge to cum since you are so aroused.

"Hold my cum in your mouth," you manage to say before pulling back slightly and unloading into your student's mouth. The obedient girl puffs her cheeks out to hold the semen while climbing to her feet.

"Open up," you say, pausing your lashes for a moment. You reach into Bethany's mouth and swab out some of your own cum on two fingers. Skylark, who was dutifully sucking up the enema fluid and savoring the small break, did not try to look at what you were doing. You walk up to the unexpecting girl and unceremoniously shove your cum-covered fingers up her nostrils.

She gasps for air as her only open airway is blocked by sticky sperm. You step back, waiting to see if she could recover on her own. After a moment of panic, Skylark breathes deeply through her nose, dislodging the cum dam and launching it into the back of her throat. She coughs uncontrollably, pushing some of the enema back into the tube, where it promptly reenters her mouth.

Satisfied she won't drown from your little surprise, you continue your lashes. When you finish your punishment and she finishes her enema drink, Bethany removes her from the whipping post. The girl collapses, before gasping in shock as Bethany begins to piss on her face. Skylark recovers quickly and slurps up most of the pee, but some drops still dribble onto the floor. You smile, knowing you now have another reason to punishment the terrified girl.