Hyunwoo, stop playing with yourself and just stay home quietly.

Hyun-woo woke up to a faint vibrating sound, an uncomfortable sensation of movement, and a strange, floating feeling. *Beeeee— Beeeee—* “Ah, ah, what is— ah, ugh! Ha-euugh…” Hyun-woo's arms and legs were spread wide and tied down to something resembling a dental patient's bed. And on both of his nipples, his cock, and his anal, devices were attached, each moving in its own way. “Seobin… ugh, haa.” The only person who would do something like this was Seobin, who had returned to a strangely quiet demeanor that day. Well. Fine, for now, let's just go along with it. That was what Hyun-woo thought. However, “Seobin, are you looking at me? Ah, I think I'm going to go again… ah, I'm coming, ...