Shocked for sure, and with more to come

"What the hell... is that...?" Jack's voice was barely a whisper, while he stared at Emma's body - or, more specifically, down to her crotch.

She just smiled and winked at him however, and left him still standing in the doorway while she turned and walked back into the appartment. The sliding chain lock would keep him out, but still give him a chance for watching the show...

"Wait...!" He started to call out for her, but the words died on his lips while she grabbed onto his (ex-)girlfriend's hips, and simply mounted her once again - for the third time within barely an hour.

Then she glanced back at him over her shoulder, making sure he had a perfect view of what was going on, before starting to plow herself deep into Lily's already well-fucked little pussy. The poor blonde groaned a little and stirred, but didn't wake up to the slow pounding she was about to recieve.

Meanwhile Jack pressed himself closer to the door, to be peering in through the narrow gap, and watching breathlessly while his lover was getting viciously fucked - and by a being that he just barely had a name for.