My boyfriends fingers hurt and such

So im moved in with my boyfriend now and sonetines he liked to go down on me and finger me(this is all anally due to well no vagina) and well his fingers are thicker than mine but i can fit some good sizes, his nails are supper short but yet i dont know i feel like its like hes just jabbing them in there, in certaim positionspositions it feels lile hes stabbing me with them. Then theres his tounge qhen he eats me out i can barely feel it! Its like woth my front when he takes me into his mouth o can feel ut yea but there just isnt ant sensations good or bad going to my brain its just like running your finger over room tenp water. When he kisses me and licks me in non sexual places i feel it and like it but down under its just like um thumbs up. I dont understand why this is. Pleade anyone know?

EDIT- does it matter im not overally turned on at the moment? I love him very much just his body doesnt do it for me. Im not grossed out by it but it doesnt get me going and just yea, plus theres little foreplay well be in bed together and then suddenly hes going for my nipples and downstsirs and i mean i dont know will i feel him more if im more in the mood? Cause so far ive barely been in it.

EDIT 2- i enjoy his attebtions elsewhere thighs, nipples(usually) armpits, neck, etc all the usual places but my butt abd well penis i do not.( the penis part im not suprised on i mean im a full fledged bottom. My penis doesnt ever do shit for me, but my butt i mean i love taking it in my butt! So its weird to me)