If things have gotten somewhat routine in the bedroom with your significant other, literally raising the temperature can easily reignite the spark.
Playing with how your bodies react to different physical sensations is always a fun game. You may have gotten frisky with an ice cube before, but for some reason, heat isn't usually explored. However, according to biopsychologist Mark S. Blumberg, Ph.D., author of Body Heat, it's one of the most effective ways to rev things up.
"Diverse sensations dramatically increase arousal, heighten skin sensitivity, and release pleasure-fueling endorphins," And specifically adding heat increases blood flow, which makes skin more receptive to stimulation. Here are several ways you can physically heat things up and play around with this phenomenon. read entire article