Got on the road bike today

So, I finally did it, I rode my Carbon Fibre road bike for the first time in over a year-and-a-half.  Ugghhhh my arse feels like it belongs on a baboon! (see attached pict), it's been rubbed RAW!!

I can't believe how unfit I feel? WTF? I have no problems riding my full suspension  Mountain bike, but holy crap I feel knackered!.

** Note, my riding buddy piked out this evening.. Bah!  oh well I guess he pushed himself too hard during last nights ride.