การเรียนรู้ความต้องการทางเพศทางตูดและอีกมากมาย

It may be a good idea to use your tongue to lick and explore her anal area, thereby increasing

her pleasure and stimulating her erogenous zone.

This technique is called anal lingus.

Now, you may begin to stretch the sphincter.

For this, you'll need to apply lubrication to your finger to prevent any unpleasant friction.