Her Boyfriend's Bad Dad

It's the first time Linsey has stayed over at her boyfriend's house. Adam is a sweet guy and she's glad that he trusts her enough to let her meet his dad, Dave. Unfortunately, Adam has to go to work and Linsey has a day off, so she's feeling a little nervous alone in the house with her boyfriend's dad. 

Surely nothing untoward could happen? She wouldn't cheat, would she? And Dave wouldn't be bad enough to encourage her, surely?