Another possible reason?
If she cums, surely it means that she is enjoying her job and not a victim of circumstances. Cumming removes her justification to herself, of why she is a wg and it can then make her feel bad about herself / create feelings of guilt.

@daporra,I like that bit about lockjaw. With me I lick until ny tongue gets a cramp!imagine telling the wife can't lick you honey, I've sprained my tongue!

Muff-wise, if you know she's enjoying it (about four seconds in..) there's no back, neither turning away or why. Besides, forcing her in a position is easy then, and more often than not enjoyed. For those simply not liking it I've got hands, one must simply find the spot and follow it, it moves.
If ever one will stop the bus halfway I'll get dressed probably, and won't return either, ever. And yes, will feel dented a bit, but live and learn.

Gentleman plz take note....NOT ALL MEN KNOWS HOW TO MUFF (sorry gents that's a true fact). I got a few clients that drives me up the wall by just licking slowly and touching it gently and not trying to suck my little clit out of proportion or break it off. There is nothing that gives me a turn on like a hard C### after a hot session of foreplay. I still think D### is king... Sorry personal opinion. I think for me...having a climax makes me sensitive and It takes awhile to recover.

I hope I get that chance.

Meg I'd love to give you an intense muffing. Make u scream the roof off

Lol Pro you know where to find me. ;-)

@Meg

Will come and try!!