I am always interested in reading of women who accept that their partners need to masturbate from time to time. It is quite normal, and in fact I find it a turn on to watch a man playing with himself.
My husband and I have a good sex life but we don't always want full sex at the same time. If John is horny and in need of relief when he comes to bed, he will sometimes read girlie mags before settling down for sleep. I am usually reading a novel while he flicks through his saucy mag. In no time his penis becomes erect and he then starts touching it, pulling the foreskin back and forth. It is difficult to keep my mind on my book while he is next to me masturbating, so I usually end up watching him have his wank. Its a very rude and erotic sight to see him with a full erection.
After ten or fifteen minutes his cock is really hard and starts to get wet around the tip as he plays with it. I know then that he is near to cumming. Within a short time after getting wet, he gets really aroused with his cock hard and tight in his hand. He ejaculates with force, shooting semen onto the magazine or sometimes onto my used panties that he finds beside the bed.
After masturbating he will often turn to me and play with my clit to bring me off before we both settle down for sleep, fully relieved.