오, 그 안에서 어떻게 감정이 자라나

The "Let me in, no game" is another suitable method.

You ask permission to enter and vibrate the rosette with your finger.

Your partner will refuse entry with a clear "no" by squeezing his sphincter muscle until he relaxes and lets you in with a "yes".

Our actor tells his partner exactly how he is touching his anus.

This establishes an inner heart connection between both and makes it possible for the receiver to be aware of the sensation and its cause.