You're both new to the hotwife lifestyle, and you will see even more lust in your wife's eyes when she sets eyes for the first time on her lover's thick 9" cock.
This is based on true story. My wife and I are both pretty competitive whenever we play games with each other like cards, board games, darts, pool, etc. We will sometimes make little bets just for fun. For example, the loser has to do the dishes or give the winner a back massage. However, I have on a number of occasions proposed that if I win she has to flirt with a guy or give her phone number to a guy or meet a guy for drinks or something like that.