People generally have the same temperature, so the touch should feel neutral, not cooler, not warmer. Why does it feel warmer?
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The way you feel temperature is not actually the temperature itself, rather you feel how quickly you are losing or gaining heat energy. Since your body is a bioreactor, it’s constantly producing heat and that heat is being radiated and convected away from you. But when you touch something that’s your own body temperature, all heat transfer stops because heat can’t flow between two things that are the same temperature.
That means if you were losing heat before on that patch of skin, and now you aren’t anymore, the amount of heat you were losing went down, and that feels to you like warmth.
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