This OP requires a factual answer, but first some relevant background information.
A strange phenomenon occurred in the bedroom last night. There were two phenomena really but the first will receive no wider currency. The second involves the application of elementary physics to a pornographic environment.
I had just finished studying my collection of pornography for points of academic interest. I was tired. I remember feeling distressed at the way I had been shamelessly manipulated by the clever photography employed in these publications. Instead of chucking the magazines under the bed as per usual I threw them carelessly to the end of the bed. I then lay down.
It was a cold night and my electric blanket was unavailable. All of a sudden my right foot encountered the pile of erotic magazines on the duvet and slid under it (and the duvet). I was pleasantly surprised by the sensation. As time went by I noticed that my right foot was getting warmer at a faster rate than my left foot. I wondered why this was so.
I don’t know how much the magazines weigh. (I don’t go into the shop and ask for “2lb of your best quality pornography, please”). I don’t think the actual weight is significant to the general principles of physics anyway. Heat is somehow being transferred from the pile of magazines to my right foot.
I am curious to know whether the increased heat in my right foot occurred because of the weight of the pornography, its temperature or perhaps both. Or was it influenced by external factors in addition. I surmise that temperature is a factor in this conundrum. I’m sure that if I put the pornography in the freezer for a few hours and then went to bed with it and replaced it on my right foot, the rate of increase in heat of that foot would be less than that experienced by me with room-temperature pornography.
Similarly if I heated the magazines in the oven, instinct tells me that my foot would get warmer at a much greater rate.
What is going on at the foot/pornography interface? What physical reaction is taking place between the pornography and my foot?
Forgive my lack of knowledge where even the most basic principles of physics are concerned.