It depends on the moment, but I generally like cumming on her face after a hand job, in her mouth if she's gonna swallow after a blowjob or a facial or pearl necklace if she's not, on her tits/pearl necklace after tit fucking/tit job, in her pussy after vaginal sex, and in her ass after anal sex. While there's a certain allure to creaming a woman's ass, I don't really get shooting it up her back, and the few times I've pulled out of pussy to cum on a stomach was because she wanted to see me pumping away and how much I was giving her, which was then scraped up and happily ingested or scraped off into her pussy for my benefit. And it makes it so much better when they seem like they really enjoy getting it, where ever it may be.