Strong silent top, whimpering bottom

I have come more times to this photo than any of my others.  This sums up perfectly what I like about sex:  the top looks strong, silent and is just using his bottom's ass without regard for how much his bottom is crying and yelling.  From the look on this bottom's face, he seems to be saying "stop! stop!" but the top just keeps pumping steadily.  And of course the bottom is going to explode in an unbelievable ass-orgasm.

Get me some lube and a towel, right now!

Bottom melting

I like to think of a cock as a magic wand that causes unimaginable pleasure when it is put inside another person. The most stoic man or woman turns into a whimpering mess and cries out involuntarily while being fucked --- and the thought of that alone makes me come. 

Look at the face in the bottom in this picture.  The top is behind him, holding onto and enjoying his ass silently while his bottom moans and writhes in ecstasy.  (Or it could be pain, but the top doesn't care because all he wants is that ass.)