If your man is tired and wants to relax, you are the best person to help him with that and make the relaxation process very efficient and effective. It will be enough for the man just to lie on his back and take a comfortable position for him. The woman lies nearby and puts her head at the bottom of his belly, she caresses with one hand his penis and does a blowjob. It is without any doubt that your male partner will be discouraged by this event, but the fact is that he will like the initiative from your side. If you do not have much experience of oral sex, do not worry, the main thing is to be gentle and not to be afraid to experiment.