Andy Cohen is already thinking about his future grandchildren. The 54-year-old host, who is dad to 3-year-old son Ben and newborn daughter Lucy, revealed on Sirius XM's that he would let his children use his three remaining embryos if they ever wanted to start families of their own.«I have a few [embryos left],» he shared with Lewis. «I can't remember. I think I have three left?»Cohen added, «You know what I'm thinking — this is crazy — but if either of them cannot have kids, maybe in 20 years they'll defrost their sibling and raise them.