if you're letting him ejaculate in your nose there could be a LOT of problems aside from sinus infections. contact your doctor for all the risks and concerns with doing something like that. the nose is NOT meant to be a sexual toy and with it being the nasal cavity it leads to the brain, the throat....
someone told me I could get a sinus infection. think that's true?
I personally have never heard that request before, but when it comes to sexual experimenting for couples there is not tabu as long as both of the partners enjoy it.
I don't think it would be dangerous but certainly not very pleasant for you!!