The punishment ends eventually.

Chantal keeps flogging them.

She does switch to Donna, which Bobbi can at least appreciate...
It would be better if she just didn't flog either of them...but what are the odds of that happening?

She keeps kissing Donna, doing her best to tune this all out.

'She's such a good kisser,' they both think, 'We should have done this sooner.'

After what feels like an eternity (in actuality, about 10 minutes), Chantal seems to tire/bore of hitting the naked duo.

So concentrated on their kissing, they don't see her leave.
They also don't see her checking the camera that she installed to film this either.

Waiting a minute (to be safe), Donna breaks the kiss.

'I think she's gone," she says.

"I think so. Is this a trick," Bobbi asks.
"Maybe. Do you want to try and get out of these ropes now?"