I'll give you a boost

Nana came in town to finalize her retirement and took the opportunity to stop by for a visit. Yes, my mother is retiring...it's hard to believe she's that old! (That one is for you, Momma.) Anyway, when she left today, Caroline decided to watch her leave by peering out the front door window. She noticed that her brother wanted to do the same, but suffered from being vertically challenged, so she said, "Brother, climb up my leg and I'll give you a boost." This is what then transpired: