2020/4 ゼンタイフェチによる勃起力と肛門力を鍛えるトレーニング(Training for Zentai fetishism's erectile and anal strength) (Pixiv Fanbox)

青のチンコの力だけで黒を支えてます。黒も負けじと奥まで突かれないように尻に力を入れてます。 Only the power of the blue cock is holding Black up. Black doesn't want to lose either, so he's putting a lot of effort into his ass to avoid being poked deep inside.