Lindsay Lohan and skateboarding beau Riley Giles have sparked engagement rumors after Lindsay was spotted wearing Riley’s ring. The report comes on the heels of claims that Whorehan sank her teeth into the beefcake before his split from former fiancee Bree Tierney. Riley denies that claim: “I broke up with Bree a week before I started dating Lindsay. We had dated for almost two years, but it’s not like we were engaged or anything.”

“Lindsay and Riley are very serious about each other,” says an In Touch Weekly insider.