I tell them to relax... that when giving milk to my wife they breathe... and let her do all the work... They usually tell me afterwards that the orgasm is much better!.. Even she continues sucking later and the orgasm is prolonged... But as a spectator it's much better when they don't listen to me, they grab the bitch's head and bury it in her throat!!!... LOL!!
When I started sucking cock, I loved bobbing my head up and down up and down until Sperm would spray the i side of my mouth and throat. The feeling of a cock pulsating and shooting sperm into your mouth is indescribable. Especially when your family is in the other room and you just want your cousin to cum in your mouth.... again, quietly.