He lies on his back and sticks out his tongue. Snuggle up to him from above and arrange a "battle in tongues." You can try taking his tongue in your mouth and sucking on it lightly.
Lick his lips. Ask to stick out the tongue and suck the tongue for 1 minute, sometimes licking his lips, moistening them with saliva abundantly
Bring sie zu kommen und pissen
Repeat the steps as in the image below.