Ouch my rear hurts

Now I should point out that I have only just got a road bike and have never riden with a group, but I quickly learnt if you get pushed out the back of the pelaton you are in most cases "buggered" this drafting thing you hear and read about is real and the effort required to ride in the pack is about half of trying to push the wind yourself. So that wa sthe first lesson from my first group ride, as well as trying to decipher the hand signals from riders ahead.
It was a beautiful morning and turning up I had no idea whom I was to be riding with and set out with the head coach Ron and hiis group, they had hinted at our first meeting that i would be riding with the 3rd team out of four, not the beginners and not the real elite. Wrong as we pushed back after sixty five km's I found that I was in fact with the elite group, so my ego was really stoked and it also explained why I could not keep up with them on the hills.
70 km of road countless hills and a sore butt to boot, whilst I have been riding Mountain bikes for years it is going to take time to get to grips with the power of a road bike because comparing the two my road bike is like a F1 compared to the old cheap clunker of a MTB.
My first week of training now complete and I can already feel the benefits and improvements and by weeks end, man was I tired.
Off to Turkey now for the week covering the Pope, so training will be in the Hotel Gym ... Rock on ...