I suppose it was that good of a blowjob, but I was a finding it very difficult to remain motionless while her lips and tongue worked their magic.  When she added the suction I started a slow in and out motion which ended up with her pressing my hips to the bed in a none-too-subtle hint to stay still!
 
Am I alone in doing thsi while getting a really good blowjob?  I thought it was a fairly natural reaction to the events happening below chest level.  Would it have been equally intrusive to squeeze her tits?  What's up with that?
