“Now we’re gonna learn about sharing body heat,” said Mr. Karl, “I can see that some of you are cold, so watch carefully how this plays out in a survival situation.”
What happened next had the attention of everyone in the room. Mr. Karl stripped down to his underwear, a medium pair of tighty whities to match the class. His huge boner was barely contained in its stretched fabric. This was his students first time also seeing all of his muscles and body hair. One student even started subconsciously gyrating his hips like an excited sex puppy.
“Now Jake, come here and help with my demonstration,” said Mr. Karl. The normally unruly Jake complied, walking to the front of his classmates with his three inch boner unhidden. He laid down on the cold tiles as Mr. Karl’s gesture implied.
“Great! So what we need to remember about sharing body heat is that the more skin-to-skin contact there is, the more heat we can exchange and contain,” said Mr. Karl, lowering his body onto jake, chest to chest, legs to legs, and bulge to bulge.
“Don’t worry if you’re erect or you get an erection during this. It’s perfectly natural for us men to get excited. You can help flatten their erection like so if it’s creating space between you,” said Mr. Karl, reaching through the side of Jake’s briefs and pushing his little erection flat to his body instead of facing outward. Jake moaned from having his hot teacher touch his dick.
“Lastly, you can generate even more heat by creating some friction between you and the other person, like this,” Mr. Karl said as he started to grind on Jake, “Now break off into pairs of two and practice this survival skill.”
This was the last straw for Jake’s poor little penis, as his teacher continued to grind on him, he came himself with a loud moan. Many of the other students were still watching as they were down on the ground with their partners for the exercise. The sight of tough guy Jake cumming himself just served to make the class hornier and they all started grinding hard with their respective partners.
One pairing was particularly cute. The only senior boy in the gym class, Todd, had his back on the ground. He was a football player, hugely built and moderately hung, with short curly blonde hair and luscious lips. Todd was known to get all the ladies he wanted. But now here he was, enjoying being grinding on by a boy three years his junior, a lanky pale boy named Dave with mid length straight black hair and warm brown eyes.
Todd was enjoying this so much in fact, that he began to wrap his big muscular legs around Dave’s waist, aligning his hole to Dave’s five inch erection. They were both still wearing their briefs, but Todd could feel Dave’s cock over his butthole anyway.
“Hump me,” said Todd, “You know...for the body heat.”
Mr. Karl let this exercise go on for the entire length of the class rather than actually getting to the swimming bit.
Many of the students ending up reaching orgasm this way. Todd was particularly loud when his happened. He was shouting “awww fuck meee,” to meek little Dave, who was having the time of his life. Todd’s legs buckled and his cum shot straight through the briefs he was wearing.
The class showered together, being more hands on than ever, soaping each other up, carefully removing any and all cum (that didn’t already get eaten pre-shower.
Darren was in a paradise of his own creation. He could hardly wait to use the tablet again.