What happens when Jesse meets Rose in the unused lounge?

Rose tells Jesse that Mia's parents are servants, but she exaggerates the situation. Jesse and Rose start to make out. Even though Rose said that she wouldn't have sex with him, she does get excited when his fangs near her throat. Jesse notices this and guesses that Lissa probably bit Rose while they were away. Jesse wants to bite her, but Rose doesn't want to let him. While she is trying to distract him from biting her, Dimitri walks in on them and runs Jesse off.