As his hand roams up her spine, her fingers trail into his hair. Through their children, she might see the exact shade of Percy's hair.

"I don't know if I can ask you to promise to tell me to stop if something feels amiss."

It's been a while and she knows she's good. That doesn't really encourage Percy to pull the emergency brake unless it's dire.

And even then...

Vex looks like she might lean down to kiss him, but stops just short of his lips.

"We may just have to have the one rule. You'll have to allow me to attend to my wifely duties without interference."