Unfortunately my wife didn't go around sucking and fucking my buddies when she was pregnant (at least if I know!) but she too was running on sexual overdrive during the last 3-4 months at least. First she was not feeling too good, but later she was constantly in heat. Her nipples were even more sensitive than normally, tweak and she was dripping. She confessed that she had masturbated a number of times at work too, mostly in the restrooms, to get a little relief and be able to concentrate on her work. First is was sex in pretty usual way, just more often. Then closer to delivery she mostly wanted to get fingered and have anal. I've never fucked her in the ass as often as during that time.