Back in 2002, Lorenzo Lamas divorced his fourth wife Shauna Sand. Shauna is known for being a Playboy model and Michael K's obsession. Well, Star Magazine is reporting that the reason Lorenzo and Shauna got divorced is because Shauna was having sex with Lorenzo's 18 year old son. I think it is interesting that they are for sure making him 18 when the pair started having sex. Definitely don't want to accuse her of having sex with him when he was just 17. That is the way to get in trouble. They probably waited until the day he turned 18 and then just had one big party.According to the source, Lorenzo thought Shauna was just being a great mom. Well, sure if being a great mom means having sex with your step son than she is for sure mom of the year."Shauna came on to A.J.," a friend of Lorenzo's tells Star in the July 20 issue, on sale today. "It was the ultimate betrayal. Lorenzo had no idea; he was in the dark about the whole thing."Don't you just love how Star tells you the issue is on sale today? I'm not going to buy it but you can bet I will stop by the grocery store, and find the longest line so I can read it in peace. I will then set it down and wonder again how it is that Star makes any money when everyone just reads the magazine at the checkout counter. If you go to the store a couple of times a week you can pretty much read every article in the magazine.Lorenzo is currently shooting a reality show for E! and they say Lorenzo talks about the romance on the show. That will get people to watch. Much more juicy than any episode of Jon & Kate.