I say hate fuck her. Just fuck that terrible personality right out of her. Fuck her so hard that it knocks all that silly "I'm so tight" shit right out onto the bed.
Then I agree with everyone else. Stick your cock in your wifey's ass, then straight to the bitch's mouth and then slap her with it a few times.
Then maybe stick it in HER ass, and then back up to her mouth while lovingly pleasuring your wife with your own mouth.
After you cum on your wife's friends "A-list" face, wipe your spooge up with the chicks hair, (which she will scream about, then run to the bathroom.) Then while she's in the bathroom, you can yell for her to bring you two love birds a damp towel, to clean up with.
After she brings you the towel, make her sleep at the bottom of the bed. Maybe even under it. Just to keep her in check.
Kiss your wife, tell her you love her, and that this new chick is gonna have to start buying her own goddamn ho ho's if she plans on sticking around.
Oh, then come back to the board and tell everyone how it all turned out.