You could buy trifel or some food like cream to eat off his stonking wet cock...
Or you could buy fruit or veg to insert in him....
As for dialogue i'm not great at that either...im sure there are some sites that have that kind of thing.. :S
Hope some of this helps... I'm not a kinky mistress and have never tried being dominant so I cant really advise... but it seems I am the only one to answer in a usefull way :S