Here's another reason why Kate Beckinsale is the Sexiest MILF Alive; she's a trendsetter. Here she is wearing some ripped up leggings. I’m not sure if you buy them like that or you just take sheers to an old pair, but I hope this look catches on. The only problem is that due to positioning of the holes, she is not receiving the required ventilation. That could cause problems down the road. Just looking out for Kate's best interests.