Physical affection is not something Lex has much experience in. The Luthors were either cold and distant or harsh and volatile, with little room for anything in between. What he knows of touch is that it is best used as a tool for manipulation just like any other weapon.

When Rachel hugs him he stiffens, uncharacteristically caught off guard. It takes him a moment to mentally relax and he wraps his arms around her to return the embrace, doing his best to smooth over the initial hesitation. He smiles at the kiss on the cheek and when he pulls away he keeps his hands loosely alongside Rachel's arms to remind them both that this is a good thing.

"I'm glad you could make it. Though I have to ask what happened to your tail and pitchfork."