A very unlikely crossover, but an idea where Yumemi Riamu from Idolmaster is eating out Touko Fukawa from Danganronpa. They're both on the bed, naked, Fukawa is sat up against the headboard, with her legs spread wide and Riamu laid on the bed in front of her, head between Fukawa's thighs. She's gripping Riamu's hair tightly, Fukawa's face a drooling ahegao while shouting "G-aaah, cumming!"