Can't say that I've ever actually been in that particular situation but I doubt I'd have a problem with it. I am always more than willing to go down on my lady after I've cum on or in her pussy if it just doesn't seem like it's time to cuddle yet after I've cum. On many occasions I've licked my cum off her tummy or nipples and we've shared it that way too. I've just never given it much thought I guess. I guess I'm odd in that I have never been able to have an orgasm from oral sex, not even when I was a teenager. Not really sure why that is, although at one time I recall reading a thread about it on here. But yeah, if I were to cum in a ladies mouth and she wanted to kiss me right afterwards, absolutely I'd do it.