Don’t go for the penis right away. Start by stroking his legs, buttocks and thighs. Make him long for more …
Tease him by stopping suddenly and briefly, while kissing his body. Postponing his orgasm – if done well - will make it stronger in the end.
When he gets more and more more excited, increase speed. However, don’t change your position or rhythm when he’s getting close to orgasm.
After orgasm, the penis is usually too sensitive to touch, so do not continue stimulating it.