When wife and I were having sex (it doesn't happen very often now), I would sometimes ejaculate in her a little but without an orgasm, but she didn't know it (or at least I didn't think she did - maybe she could tell?). I would go down on her right after that, and it was awesome. I have never asked her if I could clean her up, as I don't know how she would react, but i fantasize about it quite often. Mostly the fantasy involves her riding me and moves up to sit on my face after I ejaculate prematurely. I have never been able to last very long in bed, usually cumming within a minute or two, but her on top is something that makes me cum even faster.