Xander is doing some research for his anatomy class when his dad's new wife,  Katie,  walks in on him. This flirtatious cougar quickly starts drawing comparisons between the well-define mannequin and Xander's own body,  maybe getting a little bit too friendly? Maybe he needs to work on some female anatomy? Someone with a bit more experience than those ditsy college girls he's been hanging around with. Why waste your time with sorority girls trying to figure out what to do when you can be with a MILF who knows how to really please a man while getting what she wants. Just give in. They know what they're doing,  and Katie does it well.