Jack was, perhaps not too surprisingly, fine with that. He knew this was fantasy, and he was a willing participant. Both of them had a hand in his hair now and Layla continued her attentions to his neck. She seemed uncertain what to do next, as if she was a hungry person offered a buffet and didn't know where to start devouring.
That seemed like an apt analogy to him.
She moved to bite Lucas on the neck while the two men kissed. It was sexy, erotic, and Jack knew he'd need a very cold shower before he tried to sleep tonight. He could only imagine what they'd probably be up to when he left.
He wasn't sure how to end his participation in this, without having them think he wasn't enjoying himself. Perhaps they had something in mind, a limit of how long they'd let the kissing continue. He decided to follow their lead, for now.