I'm a bottom so I douche regularly (I just bought one that hooks up to the shower and it's my new best friend!) and I am generally very clean and I won't let anything into my ass if I think it's not clean. Yesterday I was blowing my boyfriend and I fingered him. It wasn't terribly clean (not filthy, just not freshly washed)...I always thought this would bother me but we were so into it that I just kept on doing it until he came and I washed my hands...to my surprise (and his pleasure) it was no big deal.