My first frotting experiences were with a buddy I ran track with. After track, we would shower and change back into school clothes and go to one or the other's home. He and I had been experimenting for a year or so...jacking off, jacking each other off, and sucking each other. This one day we got to his house and when alone in his room, he grabbed me and started kissing me. Soon we were fully making out, heavy tongue action. He reached back and found my ass cheeks and took them in both hands and push my crotch against his. We stood there humping each other until we were both totally up in our pants, We laid on bed and continued humping and making out, not removing any clothing. We began to hump so hard that we both shot our loads in our underwear. Oh fuck it was intense and great!. We both stripped off our briefs and swapped them and each lick the other's cum of their tighty whities. Then we kissed and shared the taste of the cum with each other. We humped fully clothed many more times. Still see him from time to time and we meet for a hump. Now we both wear jocks sometimes so we can suck those pouches. Don't think either of us have washed those jocks...ever! Taste so amazing and the smell is an aphrodisiac.