Lex and Casey do their best to comfort Shawn with the aid of a tapas bottle Lex has kept stored in her room.  The three of them spend the night drinking and wake up in a complete stupor.  Not only do they not remember what happened during the night, but they have somehow been de-evolved to a point where all they can think about is finding more tapas.  The drink has been doctored and they have been turned into cavemen.

 

Milady shows up at that moment.  She promises to give them more to drink if they do her one little favor.  She wants a DNA sample from Philip.  Eager to gain more tapas, the trio lumber through the House and up the stairs to Philip's bedroom, where he is occupied with Ariadne.  Tumbling in through the door, Casey attacks Philip while Lex and Shawn both pin down Ariadne.  Reluctantly to hurt their friends, Philip and Ariadne don't fight back until Casey pulls a handful of hair out of Philip's head.

 

Philip and Ariadne manage to wrangle the ape people enough for Ariadne to open a portal beneath them.  They drop down into the lobby and scamper over Amorette and Alastor, returning to the kitchen.  There, they give Milady Philip's hair.  She in turn gives them tapas and matches, intent on causing chaos in the House, but Adriana walks in at that moment.  She offers them her shiny earrings if they attack Milady, which they do.  Milady leaves in a huff.

 

The group are sobered up, realizing both that Lex has a tail and that the three of them have spent the night behaving very inappropriately.  Things begin to calm down.  The trio apologize to Philip and Ariadne, then to each other.  Shawn and Casey promise not to tell anyone about Lex's secret demon heritage and as a gesture of good faith, they confess about their marriage to her.  Just when everything is returning to normal though, Lex makes a startling discovery:  She's pregnant and Shawn is the father.