This felt extremely weird in the first moments and Ryuutaro tensed up without meaning to. But the kisses were comforting and after a moment he could force himself to relax again.
Now it didn't feel that bad. The fortune-teller heard himself let out a moan between kisses.
One of his hands tightly gripped Hayato, holding him extremely close, while the other still was somewhat busy wandering over his boyfriends exposed back.

It was a bit unsettling to caught in actions he knew next to nothing about, but Ryuutaro's brain didn't form enough coherent thoughts anymore to make him care.