only the once, it was pretty decent actually - both
I was "seeing" (sleeping with every now and then) this woman who kept hinting about anal so one night decided I'd have a go. Did the old vulcan fingers on her, two in the pink, one in the stink, and rubbed her clit with my thumb. She fucking loved it. Proper going off her nut about it, so I bent her over onto all fours and ate her pussy and ass out for about 20 minutes til she squirted all down my chin.
receiving was from someone different and was a bit of a surprise as it was in work