Ok, you can fuck yourself, now stick it in your ass (if you don't have a dildo use your finger)
Wow that looks hot
Now play with your cock too
stroke your cock at the same pace as you are fucking yourself for the next 3 minutes.
If you are getting too close to cumming then stop stroking and only fuck your ass, if you can cum while only fucking your ass then you can cum in your hand.
If you are not able then