River may jump me tonight

"Thanks for the hint about what might be coming up." River may jump me tonight. With an early start. "Should I take something to make sure I don't let you down?" "Do you think you're going to let me down?" "Not really. But this is a momentous occasion." "Because you waited so long that my libido is kicking in instead of yours?" On the way home I was remembering the time River was musing about what we could do for variety. We overlooked an obvious answer. She can initiate.