In this short scene, we learn that we're about to find out what it's like to be in love with Viola. She's so excited that she's about to give birth to a baby boy, but she can't stop thinking about how awesome it would be to have sex with Viola right now. She wants to make sure that she and Viola are as perfect as possible, so she asks Cesario if he's ever thought of her while she'd been "shut tight" . Cesario says that he'd never thought about her while he was "straining