Oh man that's hot!  Wait, they aren't actually tongue kissing!  OK, so here is the real setup...  Steve said wants his front teeth back for Christmas because he knocked them out about 10 years ago and Lynn texted in that she also wants her front teeth back for Christmas!  So, in typical Fish fashion, he decided to imitate what Steve and Lynn would look and sound like if they kissed without their teeth.  That toothless tongue kiss got pretty hot and slobbery!