[ Ratio's finger rubs in circles around his hole, easing a single finger into him as they crush their lips together. ] That eager for a grade, are you..? [ He exhales in a short, breathy laugh against his lips. ] 8 out of 10. But there are always opportunities for extra credit. [ Aventurine is already starting to babble senselessly, so once he mentions lube, Ratio's other hand slips his fingers into Aventurine's mouth. ] Suck. You can provide your own lube.