In light of the recent public infidelity shenanigans of A-Rod, Tiger Woods, etc. I believe all celebrity athletes should follow what I will now dub "The Jeter Rule" (or to a lesser degree, "The Zito Rule" after San Francisco Giants pitcher Barry Zito):
If you are a rich, handsome athlete who feels like fucking every hot piece of ass that moves, by all means do so. Rinse and repeat. WARNING: Remain single until this urge recedes completely or at least considerably. Otherwise, significant loss of income and reputation may follow.
(If while married you continue to indulge, however, at least make an effort to involve yourself with women hotter than your own. The contrary is pointless and embarassing to all.)