Awkward TMI!

So last night me and my boyfriend did something we said we'd never do and that was "anal". Last night we laid down getting ready to go to sleep and my butt was against his crotch. I guess my butt being against him is what got him hard. I took his thing and start to rub it against me and at one point we started to get busy but after a little teasing I turned back over and he fell asleep still hard. I pressed my butt against him again and he started to stick it in. It was a shock at first but once the tip was in I thought "that didn't hurt" so I let him go all the way. Once he was all the way that's when it hurt; I stopped him and pulled him out. I was still on my side; after a min I told him it hurt and wanted to see if he wanted to try a different way so I laid on my back. We tried again and it still hurt; once he went fast it would stopped hurting but once he slowed down it hurt alot. I asked if he wanted to try doggy style and he said yes so we tried that and again it hurt. I told him I was done and we finished the normal way. After we finished we both agreed not to do that again and that it wasn't bad just not our cup of tea. I talked to him on his lunch break today and he asked how I felt. I told him sore and he said he is weirded out by the whole thing and I told him so was I. I have never felt so awkward to be around him but now I am. I feel dirty and wrong for even trying it!! I'm sorry I had to vent alittle