Tried anal but was uncomfortable and just felt like I needed to shit. Love a finger when being sucked, anyway of making it less painful and enjoyable m?
Plenty of lube. (Try various alternatives). Foreplay. Rimming. Fingers. Maybe small toys. Go slow. The more you relax the better chances of enjoying. The feeling of shitting yourself is natural. But if you've douched well you have little to worry about. Go with it. Work with the sensation not against it.